Win32_OperatingSystem Class (Windows)

Win32_OperatingSystem Class

The Win32_OperatingSystem WMI class represents a Windows-based operating system installed on a computer. Any operating system that can be installed on a computer that can run a Windows-based operating system is a descendent or member of this class. Win32_OperatingSystem is a singleton class. To get the single instance, use "@" for the key.

Windows Server 2003, Windows XP, Windows 2000, and Windows NT 4.0: If a computer has multiple operating systems installed, this class only returns an instance for the currently active operating system.

The following syntax is simplified from Managed Object Format (MOF) code and includes all of the inherited properties. Properties and methods are in alphabetic order, not MOF order.

Syntax

class Win32_OperatingSystem : CIM_OperatingSystem
{
  string   BootDevice;
  string   BuildNumber;
  string   BuildType;
  string   Caption;
  string   CodeSet;
  string   CountryCode;
  string   CreationClassName;
  string   CSCreationClassName;
  string   CSDVersion;
  string   CSName;
  sint16   CurrentTimeZone;
  boolean  DataExecutionPrevention_Available;
  boolean  DataExecutionPrevention_32BitApplications;
  boolean  DataExecutionPrevention_Drivers;
  uint8    DataExecutionPrevention_SupportPolicy;
  boolean  Debug;
  string   Description;
  boolean  Distributed;
  uint32   EncryptionLevel;
  uint8    ForegroundApplicationBoost;
  uint64   FreePhysicalMemory;
  uint64   FreeSpaceInPagingFiles;
  uint64   FreeVirtualMemory;
  datetime InstallDate;
  uint32   LargeSystemCache;
  datetime LastBootUpTime;
  datetime LocalDateTime;
  string   Locale;
  string   Manufacturer;
  uint32   MaxNumberOfProcesses;
  uint64   MaxProcessMemorySize;
  string   MUILanguages[];
  string   Name;
  uint32   NumberOfLicensedUsers;
  uint32   NumberOfProcesses;
  uint32   NumberOfUsers;
  uint32   OperatingSystemSKU;
  string   Organization;
  string   OSArchitecture;
  uint32   OSLanguage;
  uint32   OSProductSuite;
  uint16   OSType;
  string   OtherTypeDescription;
  Boolean  PAEEnabled;
  string   PlusProductID;
  string   PlusVersionNumber;
  boolean  Primary;
  uint32   ProductType;
  string   RegisteredUser;
  string   SerialNumber;
  uint16   ServicePackMajorVersion;
  uint16   ServicePackMinorVersion;
  uint64   SizeStoredInPagingFiles;
  string   Status;
  uint32   SuiteMask;
  string   SystemDevice;
  string   SystemDirectory;
  string   SystemDrive;
  uint64   TotalSwapSpaceSize;
  uint64   TotalVirtualMemorySize;
  uint64   TotalVisibleMemorySize;
  string   Version;
  string   WindowsDirectory;
};

Methods

The Win32_OperatingSystem class defines the following methods.

Method	Description
Reboot	Shuts down and then restarts the computer system.
SetDateTime	Allows the computer date and time to be set.
Shutdown	Unloads programs and DLLs to the point where it is safe to turn off the computer.
Win32Shutdown	Provides the full set of shutdown options supported by Windows operating systems.
Win32ShutdownTracker	Provides the same set of shutdown options supported by the Win32Shutdown method in Win32_OperatingSystem, but also allows you to specify comments, a reason for shutdown, or a timeout. Windows Server 2003, Windows XP, Windows 2000, and Windows NT 4.0: This method is not available.

Properties

The Win32_OperatingSystem class defines the following properties.

BootDevice

Data type: string
Access type: Read-only

Name of the disk drive from which the Windows operating system starts.

Example: "\\Device\Harddisk0"

BuildNumber

Data type: string
Access type: Read-only

Build number of an operating system. It can be used for more precise version information than product release version numbers.

Example: "1381"

BuildType

Data type: string
Access type: Read-only

Type of build used for an operating system.

Examples: ""retail build"", ""checked build""

Caption

Data type: string
Access type: Read-only

Short description of the object—a one-line string. The string includes the operating system version. For example, "Microsoft Windows XP Professional Version = 5.1.2500". This property can be localized.

CodeSet

Data type: string
Access type: Read-only
Qualifiers: MaxLen(6)

Code page value an operating system uses. A code page contains a character table that an operating system uses to translate strings for different languages. The American National Standards Institute (ANSI) lists values that represent defined code pages. If an operating system does not use an ANSI code page, this member is set to 0 (zero). The CodeSet string can use a maximum of six characters to define the code page value.

Example: "1255"

CountryCode

Data type: string
Access type: Read-only

Code for the country/region that an operating system uses. Values are based on international phone dialing prefixes—also referred to as IBM country/region codes. This property can use a maximum of six characters to define the country/region code value.

Example: "1" (United States)

CreationClassName

Data type: string
Access type: Read-only
Qualifiers: Key, MaxLen(256)

Name of the first concrete class that appears in the inheritance chain used in the creation of an instance. When used with other key properties of the class, this property allows all instances of this class and its subclasses to be identified uniquely.

CSCreationClassName

Data type: string
Access type: Read-only

Creation class name of the scoping computer system.

CSDVersion

Data type: string
Access type: Read-only

NULL-terminated string that indicates the latest service pack installed on a computer. If no service pack is installed, the string is NULL. For computers running on Windows 95, this property contains a null-terminated string that provides more information about the operating system.

Example: "Service Pack 3"

CSName

Data type: string
Access type: Read-only

Name of the scoping computer system.

CurrentTimeZone

Data type: sint16
Access type: Read-only

Number, in minutes, an operating system is offset from Greenwich mean time (GMT). The number is positive, negative, or zero.

DataExecutionPrevention_32BitApplications

Data type: boolean
Access type: Read-only

When the data execution prevention hardware feature is available, this property indicates that the feature is set to work for 32-bit applications if True. On 64-bit computers, the data execution prevention feature is configured in the Boot Configuration Data (BCD) store and the properties in Win32_OperatingSystem are set accordingly.

Windows Server 2003, Windows 2000, Windows NT 4.0, Windows XP, and Windows Me/98/95: This property is not available.

DataExecutionPrevention_Available

Data type: boolean
Access type: Read-only

Data execution prevention is a hardware feature to prevent buffer overrun attacks by stopping the execution of code on data-type memory pages. If True, then this feature is available. On 64-bit computers, the data execution prevention feature is configured in the BCD store and the properties in Win32_OperatingSystem are set accordingly.

Windows Server 2003, Windows 2000, Windows NT 4.0, Windows XP, and Windows Me/98/95: This property is not available.

DataExecutionPrevention_Drivers

Data type: boolean
Access type: Read-only

When the data execution prevention hardware feature is available, this property indicates that the feature is set to work for drivers if True. On 64-bit computers, the data execution prevention feature is configured in the BCD store and the properties in Win32_OperatingSystem are set accordingly.

Windows Server 2003, Windows 2000, Windows NT 4.0, Windows XP, and Windows Me/98/95: This property is not available.

DataExecutionPrevention_SupportPolicy

Data type: uint8
Access type: Read-only

Indicates which Data Execution Prevention (DEP) setting is applied. The DEP setting specifies the extent to which DEP applies to 32-bit applications on the system. DEP is always applied to the Windows kernel.

Windows Server 2003, Windows 2000, Windows NT 4.0, Windows XP, and Windows Me/98/95: This property is not available.

The following table lists the possible values.

Value	Meaning
Always Off 0	DEP is turned off for all 32-bit applications on the computer with no exceptions. This setting is not available for the user interface.
Always On 1	DEP is enabled for all 32-bit applications on the computer. This setting is not available for the user interface.
Opt In 2	DEP is enabled for a limited number of binaries, the kernel, and all Windows-based services. However, it is off by default for all 32-bit applications. A user or administrator must explicitly choose either the AlwaysOn or the OptOut setting before DEP can be applied to 32-bit applications.
Opt Out 3	DEP is enabled by default for all 32-bit applications. A user or administrator can explicitly remove support for a 32-bit application by adding the application to an exceptions list.

Debug

Data type: boolean
Access type: Read-only

Operating system is a checked (debug) build. If True, the debugging version of User.exe is installed. Checked builds provide error checking, argument verification, and system debugging code. Additional code in a checked binary generates a kernel debugger error message and breaks into the debugger. This helps immediately determine the cause and location of the error. Performance may be affected in a checked build due to the additional code that is executed.

Description

Data type: string
Access type: Read/write

Description of the Windows operating system. Some user interfaces for example, those that allow editing of this description, limit its length to 48 characters.

Distributed

Data type: boolean
Access type: Read-only

If True, the operating system is distributed across several computer system nodes. If so, these nodes should be grouped as a cluster.

EncryptionLevel

Data type: uint32
Access type: Read-only

Windows Server 2003 and Windows XP: Encryption level for secure transactions: 40-bit, 128-bit, or n-bit.

ForegroundApplicationBoost

Data type: uint8
Access type: Read/write

Increase in priority is given to the foreground application. Application boost is implemented by giving an application more execution time slices (quantum lengths).

Windows Me/98/95: Application boost is not available.

A ForegroundApplicationBoost value of 0 (zero) indicates the system boosts the quantum length by 6; if 1, then 12; and if 2 then 18. The default value is 2.

Windows NT 3.51 and earlier: Application boost is implemented by increasing the scheduling priority. The scheduling priority is increased by the value of this property.

Value	Meaning
0	None
1	Minimum
2	(Default) Maximum

FreePhysicalMemory

Data type: uint64
Access type: Read-only

Number, in kilobytes, of physical memory currently unused and available.

For more information about using uint64 values in scripts, see Scripting in WMI.

FreeSpaceInPagingFiles

Data type: uint64
Access type: Read-only

Number, in kilobytes, that can be mapped into the operating system paging files without causing any other pages to be swapped out.

For more information about using uint64 values in scripts, see Scripting in WMI.

FreeVirtualMemory

Data type: uint64
Access type: Read-only

Number, in kilobytes, of virtual memory currently unused and available.

For more information about using uint64 values in scripts, see Scripting in WMI.

InstallDate

Data type: datetime
Access type: Read-only

Date object was installed. This property does not require a value to indicate that the object is installed.

LargeSystemCache

Data type: uint32
Access type: Read-only

Indicates whether to optimize memory for applications or system performance. Beginning with Windows Vista, this property is obsolete and not supported.

Windows Server 2003 and Windows XP: This property is supported.

Windows 2000 and Windows NT 4.0 with SP4 and later: This property is not available.

Value	Meaning
0	Optimize memory for applications.
1	Optimize memory for system performance.

LastBootUpTime

Data type: datetime
Access type: Read-only

Date and time the operating system was last restarted.

LocalDateTime

Data type: datetime
Access type: Read-only

Operating system version of the local date and time-of-day.

Locale

Data type: string
Access type: Read-only

Language identifier used by the operating system. A language identifier is a standard international numeric abbreviation for a country/region. Each language has a unique language identifier (LANGID), a 16-bit value that consists of a primary language identifier and a secondary language identifier.

Manufacturer

Data type: string
Access type: Read-only

Name of the operating system manufacturer. For Windows-based systems, this value is "Microsoft Corporation".

MaxNumberOfProcesses

Data type: uint32
Access type: Read-only

Maximum number of process contexts the operating system can support. The default value set by the provider is 4294967295 (0xFFFFFFFF). If there is no fixed maximum, the value should be 0 (zero). On systems that have a fixed maximum, this object can help diagnose failures that occur when the maximum is reached—if unknown, enter 4294967295 (0xFFFFFFFF).

MaxProcessMemorySize

Data type: uint64
Access type: Read-only

Maximum number, in kilobytes, of memory that can be allocated to a process. For operating systems with no virtual memory, typically this value is equal to the total amount of physical memory minus the memory used by the BIOS and the operating system. For some operating systems, this value may be infinity, in which case 0 (zero) should be entered. In other cases, this value could be a constant, for example, 2G or 4G.

For more information about using uint64 values in scripts, see Scripting in WMI.

MUILanguages

Data type: string array
Access type: Read-only

Multilingual User Interface Pack (MUI Pack ) languages installed on the computer. For example, "en-us". MUI Pack languages are resource files that can be installed on the English version of the operating system. When an MUI Pack is installed, you can can change the user interface language to one of 33 supported languages.

Name

Data type: string
Access type: Read-only

Operating system instance within a computer system.

NumberOfLicensedUsers

Data type: uint32
Access type: Read-only

Number of user licenses for the operating system. If unlimited, enter 0 (zero). If unknown, enter -1.

NumberOfProcesses

Data type: uint32
Access type: Read-only

Number of process contexts currently loaded or running on the operating system.

NumberOfUsers

Data type: uint32
Access type: Read-only

Number of user sessions for which the operating system is storing state information currently.

OperatingSystemSKU

Data type: uint32
Access type: Read-only

Stock Keeping Unit (SKU) number for the operating system.

Windows Server 2003, Windows XP, Windows 2000, and Windows NT 4.0: This property is not available.

The following table lists possible SKU values.

Value	Meaning
0	Undefined
1	Ultimate Edition
2	Home Basic Edition
3	Home Premium Edition
4	Enterprise Edition
5	Home Basic N Edition
6	Business Edition
7	Standard Server Edition
8	Datacenter Server Edition
9	Small Business Server Edition
10	Enterprise Server Edition
11	Starter Edition
12	Datacenter Server Core Edition
13	Standard Server Core Edition
14	Enterprise Server Core Edition
15	Enterprise Server Edition for Itanium-Based Systems
16	Business N Edition
17	Web Server Edition
18	Cluster Server Edition
19	Home Server Edition
20	Storage Express Server Edition
21	Storage Standard Server Edition
22	Storage Workgroup Server Edition
23	Storage Enterprise Server Edition
24	Server For Small Business Edition
25	Small Business Server Premium Edition

Organization

Data type: string
Access type: Read-only

Company name for the registered user of the operating system.

Example: "Microsoft Corporation"

OSArchitecture

Data type: string
Access type: Read-only

Architecture of the operating system, as opposed to the processor.

Example: 32-bit

Windows Server 2003, Windows 2000, Windows NT 4.0, Windows XP, and Windows Me/98/95: This property is not available.

OSLanguage

Data type: uint32
Access type: Read-only

Language version of the operating system installed. The following table lists the possible values. Example: 0x0807 (German, Switzerland).

Value	Meaning
1 (0x1)	Arabic
4 (0x4)	Chinese (Simplified)– China
9 (0x9)	English
1025 (0x401)	Arabic – Saudi Arabia
1026 (0x402)	Bulgarian
1027 (0x403)	Catalan
1028 (0x404)	Chinese (Traditional) – Taiwan
1029 (0x405)	Czech
1030 (0x406)	Danish
1031 (0x407)	German – Germany
1032 (0x408)	Greek
1033 (0x409)	English – United States
1034 (0x40A)	Spanish – Traditional Sort
1035 (0x40B)	Finnish
1036 (0x40C)	French – France
1037 (0x40D)	Hebrew
1038 (0x40E)	Hungarian
1039 (0x40F)	Icelandic
1040 (0x410)	Italian – Italy
1041 (0x411)	Japanese
1042 (0x412)	Korean
1043 (0x413)	Dutch – Netherlands
1044 (0x414)	Norwegian – Bokmal
1045 (0x415)	Polish
1046 (0x416)	Portuguese – Brazil
1047 (0x417)	Rhaeto-Romanic
1048 (0x418)	Romanian
1049 (0x419)	Russian
1050 (0x41A)	Croatian
1051 (0x41B)	Slovak
1052 (0x41C)	Albanian
1053 (0x41D)	Swedish
1054 (0x41E)	Thai
1055 (0x41F)	Turkish
1056 (0x420)	Urdu
1057 (0x421)	Indonesian
1058 (0x422)	Ukrainian
1059 (0x423)	Belarusian
1060 (0x424)	Slovenian
1061 (0x425)	Estonian
1062 (0x426)	Latvian
1063 (0x427)	Lithuanian
1065 (0x429)	Persian
1066 (0x42A)	Vietnamese
1069 (0x42D)	Basque
1070 (0x42E)	Serbian
1071 (0x42F)	Macedonian (F.Y.R.O. Macedonia)
1072 (0x430)	Sutu
1073 (0x431)	Tsonga
1074 (0x432)	Tswana
1076 (0x434)	Xhosa
1077 (0x435)	Zulu
1078 (0x436)	Afrikaans
1080 (0x438)	Faeroese
1081 (0x439)	Hindi
1082 (0x43A)	Maltese
1084 (0x43C)	Gaelic
1085 (0x43D)	Yiddish
1086 (0x43E)	Malay – Malaysia
2049 (0x801)	Arabic – Iraq
2052 (0x804)	Chinese (Simplified) – PRC
2055 (0x807)	German – Switzerland
2057 (0x809)	English – United Kingdom
2058 (0x80A)	Spanish – Mexico
2060 (0x80C)	French – Belgium
2064 (0x810)	Italian – Switzerland
2067 (0x813)	Dutch – Belgium
2068 (0x814)	Norwegian – Nynorsk
2070 (0x816)	Portuguese – Portugal
2072 (0x818)	Romanian – Moldova
2073 (0x819)	Russian – Moldova
2074 (0x81A)	Serbian – Latin
2077 (0x81D)	Swedish – Finland
3073 (0xC01)	Arabic – Egypt
3076 (0xC04)	Chinese (Traditional) – Hong Kong SAR
3079 (0xC07)	German – Austria
3081 (0xC09)	English – Australia
3082 (0xC0A)	Spanish – International Sort
3084 (0xC0C)	French – Canada
3098 (0xC1A)	Serbian – Cyrillic
4097 (0x1001)	Arabic – Libya
4100 (0x1004)	Chinese (Simplified) – Singapore
4103 (0x1007)	German – Luxembourg
4105 (0x1009)	English – Canada
4106 (0x100A)	Spanish – Guatemala
4108 (0x100C)	French – Switzerland
5121 (0x1401)	Arabic – Algeria
5127 (0x1407)	German – Liechtenstein
5129 (0x1409)	English – New Zealand
5130 (0x140A)	Spanish – Costa Rica
5132 (0x140C)	French – Luxembourg
6145 (0x1801)	Arabic – Morocco
6153 (0x1809)	English – Ireland
6154 (0x180A)	Spanish – Panama
7169 (0x1C01)	Arabic – Tunisia
7177 (0x1C09)	English – South Africa
7178 (0x1C0A)	Spanish – Dominican Republic
8193 (0x2001)	Arabic – Oman
8201 (0x2009)	English – Jamaica
8202 (0x200A)	Spanish – Venezuela
9217 (0x2401)	Arabic – Yemen
9226 (0x240A)	Spanish – Colombia
10241 (0x2801)	Arabic – Syria
10249 (0x2809)	English – Belize
10250 (0x280A)	Spanish – Peru
11265 (0x2C01)	Arabic – Jordan
11273 (0x2C09)	English – Trinidad
11274 (0x2C0A)	Spanish – Argentina
12289 (0x3001)	Arabic – Lebanon
12298 (0x300A)	Spanish – Ecuador
13313 (0x3401)	Arabic – Kuwait
13322 (0x340A)	Spanish – Chile
14337 (0x3801)	Arabic – U.A.E.
14346 (0x380A)	Spanish – Uruguay
15361 (0x3C01)	Arabic – Bahrain
15370 (0x3C0A)	Spanish – Paraguay
16385 (0x4001)	Arabic – Qatar
16394 (0x400A)	Spanish – Bolivia
17418 (0x440A)	Spanish – El Salvador
18442 (0x480A)	Spanish – Honduras
19466 (0x4C0A)	Spanish – Nicaragua
20490 (0x500A)	Spanish – Puerto Rico

OSProductSuite

Data type: uint32
Access type: Read-only

Installed and licensed system product additions to the operating system. For example, the value of 146 (0x92) for OSProductSuite indicates Enterprise, Terminal Services, and Data Center (bits one, four, and seven set). The following table lists possible values.

Value	Meaning
1 (0x1)	Microsoft Small Business Server was once installed, but may have been upgraded to another version of Windows. Windows Server 2003, Windows XP, and Windows 2000: Small Business
2 (0x2)	Windows Server 2008 Enterprise, Windows Server 2003, Enterprise Edition, Windows 2000 Advanced Server, or Windows NT Server 4.0 Enterprise Edition is installed. Windows Server 2003, Windows XP, and Windows 2000: Enterprise
4 (0x4)	Windows BackOffice components are installed. Windows Server 2003, Windows XP, and Windows 2000: BackOffice
8 (0x8)	Communication Server is installed. Windows Server 2003, Windows XP, and Windows 2000: Communication Server
16 (0x10)	Terminal Services is installed. Windows Server 2003, Windows XP, and Windows 2000: Terminal Services
32 (0x20)	Microsoft Small Business Server is installed with the restrictive client license. Windows Server 2003, Windows XP, and Windows 2000: Small Business (Restricted)
64 (0x40)	Windows XP Embedded is installed. Windows Server 2003 and Windows XP: Embedded NT
128 (0x80)	Windows Server 2008 Datacenter, Windows Server 2003, Datacenter Edition, or Windows 2000 Datacenter Server is installed. Windows Server 2003, Windows XP, and Windows 2000: Data Center
256 (0x100)	Terminal Services is installed, but only one interactive session is supported. Windows Server 2003, Windows XP, and Windows 2000: This value is not available.
512 (0x200)	Windows XP Home Edition is installed. Windows Server 2003, Windows XP, and Windows 2000: This value is not available.
1024 (0x400)	Windows Server 2003, Web Edition is installed. Windows Server 2003, Windows XP, and Windows 2000: This value is not available.
8192 (0x2000)	Windows Storage Server 2003 R2 is installed. Windows Server 2003, Windows XP, and Windows 2000: This value is not available.
16384 (0x4000)	Windows Server 2003, Compute Cluster Edition is installed. Windows Server 2003, Windows XP, and Windows 2000: This value is not available.

OSType

Data type: uint16
Access type: Read-only

Type of operating system. The following list identifies the possible values.

Values	Meaning
0 (0x0)	Unknown
1 (0x1)	Other
2 (0x2)	MACROS
3 (0x3)	ATTUNIX
4 (0x4)	DGUX
5 (0x5)	DECNT
6 (0x6)	Digital UNIX
7 (0x7)	OpenVMS
8 (0x8)	HPUX
9 (0x9)	AIX
10 (0xA)	MVS
11 (0xB)	OS400
12 (0xC)	OS/2
13 (0xD)	JavaVM
14 (0xE)	MSDOS
15 (0xF)	WIN3x
16 (0x10)	WIN95
17 (0x11)	WIN98
18 (0x12)	WINNT
19 (0x13)	WINCE
20 (0x14)	NCR3000
21 (0x15)	NetWare
22 (0x16)	OSF
23 (0x17)	DC/OS
24 (0x18)	Reliant UNIX
25 (0x19)	SCO UnixWare
26 (0x1A)	SCO OpenServer
27 (0x1B)	Sequent
28 (0x1C)	IRIX
29 (0x1D)	Solaris
30 (0x1E)	SunOS
31 (0x1F)	U6000
32 (0x20)	ASERIES
33 (0x21)	TandemNSK
34 (0x22)	TandemNT
35 (0x23)	BS2000
36 (0x24)	LINUX
37 (0x25)	Lynx
38 (0x26)	XENIX
39 (0x27)	VM/ESA
40 (0x28)	Interactive UNIX
41 (0x29)	BSDUNIX
42 (0x2A)	FreeBSD
43 (0x2B)	NetBSD
44 (0x2C)	GNU Hurd
45 (0x2D)	OS9
46 (0x2E)	MACH Kernel
47 (0x2F)	Inferno
48 (0x30)	QNX
49 (0x31)	EPOC
50 (0x32)	IxWorks
51 (0x33)	VxWorks
52 (0x34)	MiNT
53 (0x35)	BeOS
54 (0x36)	HP MPE
55 (0x37)	NextStep
56 (0x38)	PalmPilot
57 (0x39)	Rhapsody

OtherTypeDescription

Data type: string
Access type: Read-only

Additional description for the current operating system version.

Windows Server 2003 R2: Contains the string "R2".

Windows Server 2003, Windows XP, Windows 2000, and Windows NT 4.0: OtherTypeDescription is null.

PAEEnabled

Data type: Boolean
Access type: Read-only

If True, the physical address extensions (PAE) are enabled by the operating system running on Intel processors. PAE allows applications to address more than 4 GB of physical memory. When PAE is enabled, the operating system uses three-level linear address translation rather than two-level. Providing more physical memory to an application reduces the need to swap memory to the page file and increases performance. To enable, PAE, use the "/PAE" switch in the Boot.ini file. For more information about the Physical Address Extension feature, see http://go.microsoft.com/fwlink?LinkID=45912.

Windows XP, Windows 2000, and Windows NT 4.0 with SP4 and later: The PAEEnabled property is not available.

PlusProductID

Data type: string
Access type: Read-only

Identification number for the Windows Plus! operating system enhancement software—if installed.

PlusVersionNumber

Data type: string
Access type: Read-only

Version number of the Windows Plus! operating system enhancement software—if installed.

Primary

Data type: boolean
Access type: Read-only

Specifies whether this is the primary operating system.

ProductType

Data type: uint32
Access type: Read-only

Additional system information.

Value	Meaning
1	Work Station
2	Domain Controller
3	Server

RegisteredUser

Data type: string
Access type: Read-only

Name of the registered user of the operating system.

Example: "Ben Smith"

SerialNumber

Data type: string
Access type: Read-only

Operating system product serial identification number.

Example: "10497-OEM-0031416-71674"

ServicePackMajorVersion

Data type: uint16
Access type: Read-only

Major version number of the service pack installed on the computer system. If no service pack has been installed, the value is 0 (zero).

Windows NT 4.0 and Windows Me/98/95: This property is present but the value is NULL.

ServicePackMinorVersion

Data type: uint16
Access type: Read-only

Minor version number of the service pack installed on the computer system. If no service pack has been installed, the value is 0 (zero).

Windows NT 4.0 and Windows Me/98/95: This property is present but the value is NULL.

SizeStoredInPagingFiles

Data type: uint64
Access type: Read-only

Total number of kilobytes that can be stored in the operating system paging files—0 (zero) indicates that there are no paging files. Be aware that this number does not represent the actual physical size of the paging file on disk.

For more information about using uint64 values in scripts, see Scripting in WMI.

Status

Data type: string
Access type: Read-only

Current status of the object. Various operational and nonoperational statuses can be defined. Operational statuses include: "OK", "Degraded", and "Pred Fail" (an element, such as a SMART-enabled hard disk drive may function properly, but predicts a failure in the near future). Nonoperational statuses include: "Error", "Starting", "Stopping", and "Service". The Service status applies to administrative work, such as mirror-resilvering of a disk, reload of a user permissions list, or other administrative work. Not all such work is online, but the managed element is neither "OK" nor in one of the other states.

The values are:

"OK"
"Error"
"Degraded"
"Unknown"
"Pred Fail"
"Starting"
"Stopping"
"Service"

SuiteMask

Data type: uint32
Access type: Read-only

Bit flags that identify the product suites available on the system.

Windows 2000 and Windows NT 4.0 with SP4 and later: This property is not available.

For example, to specify both Personal and BackOffice, set SuiteMask to 4 | 512 or 516.

The following table lists possible values.

Value	Meaning
1	Small Business
2	Enterprise
4	BackOffice
8	Communications
16	Terminal
32	Small Business Restricted
64	Embedded NT
128	Data Center
256	Single User
512	Personal
1024	Blade

SystemDevice

Data type: string
Access type: Read-only

Physical disk partition on which the operating system is installed.

SystemDirectory

Data type: string
Access type: Read-only

System directory of the operating system.

Example: "C:\WINDOWS\SYSTEM32"

SystemDrive

Data type: string
Access type: Read-only

Letter of the disk drive on which the operating system resides. Example: "C:"

Windows 2000 and Windows NT 4.0 with SP4 and later: This property is not available.

TotalSwapSpaceSize

Data type: uint64
Access type: Read-only

Total swap space in kilobytes. This value may be NULL (unspecified) if the swap space is not distinguished from page files. However, some operating systems distinguish these concepts. For example, in UNIX, whole processes can be swapped out when the free page list falls and remains below a specified amount.

For more information about using uint64 values in scripts, see Scripting in WMI.

TotalVirtualMemorySize

Data type: uint64
Access type: Read-only

Number, in kilobytes, of virtual memory. For example, this may be calculated by adding the amount of total RAM to the amount of paging space, that is, adding the amount of memory in or aggregated by the computer system to the property, SizeStoredInPagingFiles.

For more information about using uint64 values in scripts, see Scripting in WMI.

TotalVisibleMemorySize

Data type: uint64
Access type: Read-only

Total amount, in kilobytes, of physical memory available to the operating system. This value does not necessarily indicate the true amount of physical memory, but what is reported to the operating system as available to it.

For more information about using uint64 values in scripts, see Scripting in WMI.

Version

Data type: string
Access type: Read-only

Version number of the operating system.

Example: "4.0"

WindowsDirectory

Data type: string
Access type: Read-only

Windows directory of the operating system.

Example: "C:\WINDOWS"

Remarks

The Win32_OperatingSystem class is derived from CIM_OperatingSystem.

Examples

You can find an example script that obtains operating system and processor data from Win32_ComputerSystem, Win32_Processor, and Win32_OperatingSystem in the Win32_Processor topic examples. For other script examples, see WMI Tasks for Scripts and Applications and the TechNet ScriptCenter Script Repository.

For C++ code examples, see WMI C++ Application Examples.

The following script obtains the instances of Win32_OperatingSystem in the default root\cimv2 namespace, and then displays information about the operating system.

This script runs on Windows 2000 and Windows XP.

On Error Resume Next 
' Connect to WMI and obtain instances of Win32_OperatingSystem
For Each objOS in GetObject( _
    "winmgmts:").InstancesOf ("Win32_OperatingSystem")

WScript.Echo "Name = " & objOS.Caption _
    & "Version = " & objOS.Version &VBCR _
    & "Registered User = " & objOS.RegisteredUser &VBCR _
    & "Manufacturer = " & objOS.Manufacturer      
Next

if Err <> 0 Then
    WScript.Echo Err.Description
    Err.Clear
End if

Requirements

Minimum supported client	Windows 2000 Professional
Minimum supported server	Windows 2000 Server
MOF	Cimwin32.mof
DLL	Cimwin32.dll
Namespace	\root\cimv2

Sub ShutDown()
Dim Connection, WQL, SystemClass, System

'Get connection To local wmi
Set Connection = GetObject("winmgmts:root\cimv2")

'Get Win32_OperatingSystem objects - only one object In the collection
  WQL = "Select Name From Win32_OperatingSystem"
Set SystemClass = Connection.ExecQuery(WQL)

'Get one system object
'I think there is no way To get the object using URL?
For Each System In SystemClass
    System.Win32ShutDown (2)
Next
End Sub

Tags

: code (x) script (x) shutdown (x) wmi (x) Add a tag

Flag as ContentBug

mgmtclassgen and c#

Chris Lively | Edit | Show History

If using C# with mgmtclassgen , do the following:

WMI.OperatingSystem os = new ROOT.CIMV2.win32.OperatingSystem();

Unline most of the other WMI classes generated by mgmtclassgen the OperatingSystem.CreateInstance() method will return a blank OperatingSystem object.

Tags

: c# (x) code (x) Add a tag

Flag as ContentBug

Display Win32_OperatingSystem instance with PowerShell

Thomas Lee ... virgil_machine | Edit | Show History

# Display-Win32_OperatingSystemInformation.ps1
# Obtains and displays Win32_operatingsystem instance on local computer
# Thomas Lee - tfl@psp.co.uk

# get instance
$os = get-wmiobject win32_operatingsystem

# output information:
"The class has {0} properties" -f $os.properties.count
"Details on this class:"
$os | format-list *

This script produces the following output which you could tidy up by doing more formatting in the sample!):

PSH [D:\foo]: .\Display-Win32_OperatingSystemInformation.ps1
The class has 61 properties
Details on this class:


Status                                    : OK
Name                                      : Microsoft Windows XP Professional|C:\WIN
                                            DOWS|\Device\Harddisk0\Partition1
FreePhysicalMemory                        : 1513560
FreeSpaceInPagingFiles                    : 1528176
FreeVirtualMemory                         : 2055660
__GENUS                                   : 2
__CLASS                                   : Win32_OperatingSystem
__SUPERCLASS                              : CIM_OperatingSystem
__DYNASTY                                 : CIM_ManagedSystemElement
__RELPATH                                 : Win32_OperatingSystem.Name="Microsoft Wi
                                            ndows XP Professional|C:\\WINDOWS|\\Devi
                                            ce\\Harddisk0\\Partition1"
__PROPERTY_COUNT                          : 61
__DERIVATION                              : {CIM_OperatingSystem, CIM_LogicalElement
                                            , CIM_ManagedSystemElement}
__SERVER                                  : GratefullyDead21
__NAMESPACE                               : root\cimv2
__PATH                                    : \\Dead420\root\cimv2:Win32_OperatingSyst
                                            em.Name="Microsoft Windows XP Profession
                                            al|C:\\WINDOWS|\\Device\\Harddisk0\\Part
                                            ition1"
BootDevice                                : \Device\HarddiskVolume2
BuildNumber                               : 2600
BuildType                                 : Multiprocessor Free
Caption                                   : Microsoft Windows XP Professional
CodeSet                                   : 1252
CountryCode                               : 1
CreationClassName                         : Win32_OperatingSystem
CSCreationClassName                       : Win32_ComputerSystem
CSDVersion                                : Service Pack 2
CSName                                    : Dead420
CurrentTimeZone                           : 60
DataExecutionPrevention_32BitApplications : True
DataExecutionPrevention_Available         : True
DataExecutionPrevention_Drivers           : True
DataExecutionPrevention_SupportPolicy     : 2
Debug                                     : False
Description                               : The end of the road
Distributed                               : False
EncryptionLevel                           : 168
ForegroundApplicationBoost                : 2
InstallDate                               : 20060926161344.000000+060
LargeSystemCache                          : 0
LastBootUpTime                            : 20080713011646.210625+060
LocalDateTime                             : 20080716122003.085000+060
Locale                                    : 0409
Manufacturer                              : Microsoft Corporation
MaxNumberOfProcesses                      : 4294967295
MaxProcessMemorySize                      : 2097024
NumberOfLicensedUsers                     : 
NumberOfProcesses                         : 98
NumberOfUsers                             : 2
Organization                              : 
OSLanguage                                : 1033
OSProductSuite                            : 
OSType                                    : 18
OtherTypeDescription                      : 
PlusProductID                             : 
PlusVersionNumber                         : 
Primary                                   : True
ProductType                               : 1
QuantumLength                             : 0
QuantumType                               : 0
RegisteredUser                            : TGR
SerialNumber                              : XXXXXXXXXXXXXXXXXXXX 
ServicePackMajorVersion                   : 2
ServicePackMinorVersion                   : 0
SizeStoredInPagingFiles                   : 3239532
SuiteMask                                 : 272
SystemDevice                              : \Device\HarddiskVolume2
SystemDirectory                           : C:\WINDOWS\system32
SystemDrive                               : C:
TotalSwapSpaceSize                        : 
TotalVirtualMemorySize                    : 2097024
TotalVisibleMemorySize                    : 3405872
Version                                   : 5.1.2600
WindowsDirectory                          : C:\WINDOWS
Scope                                     : System.Management.ManagementScope
Path                                      : \\Dead420\root\cimv2:Win32_OperatingSyst
                                            em.Name="Microsoft Windows XP Profession
                                            al|C:\\WINDOWS|\\Device\\Harddisk0\\Part
                                            ition1"
Options                                   : System.Management.ObjectGetOptions
ClassPath                                 : \\Dead420\root\cimv2:Win32_OperatingSyst
                                            em
Properties                                : {BootDevice, BuildNumber, BuildType, Cap
                                            tion, CodeSet, CountryCode, CreationClas
                                            sName, CSCreationClassName, CSDVersion, 
                                            CSName, CurrentTimeZone, DataExecutionPr
                                            evention_32BitApplications, DataExecutio
                                            nPrevention_Available, DataExecutionPrev
                                            ention_Drivers, DataExecutionPrevention_
                                            SupportPolicy, Debug, Description, Distr
                                            ibuted, EncryptionLevel, ForegroundAppli
                                            cationBoost, FreePhysicalMemory, FreeSpa
                                            ceInPagingFiles, FreeVirtualMemory, Inst
                                            allDate, LargeSystemCache, LastBootUpTim
                                            e, LocalDateTime, Locale, Manufacturer, 
                                            MaxNumberOfProcesses, MaxProcessMemorySi
                                            ze, Name, NumberOfLicensedUsers, NumberO
                                            fProcesses, NumberOfUsers, Organization,
                                             OSLanguage, OSProductSuite, OSType, Oth
                                            erTypeDescription, PlusProductID, PlusVe
                                            rsionNumber, Primary, ProductType, Quant
                                            umLength, QuantumType, RegisteredUser, S
                                            erialNumber, ServicePackMajorVersion, Se
                                            rvicePackMinorVersion, SizeStoredInPagin
                                            gFiles, Status, SuiteMask, SystemDevice,
                                             SystemDirectory, SystemDrive, TotalSwap
                                            SpaceSize, TotalVirtualMemorySize, Total
                                            VisibleMemorySize, Version, WindowsDirec
                                            tory}
SystemProperties                          : {__GENUS, __CLASS, __SUPERCLASS, __DYNAS
                                            TY, __RELPATH, __PROPERTY_COUNT, __DERIV
                                            ATION, __SERVER, __NAMESPACE, __PATH}
Qualifiers                                : {dynamic, Locale, provider, UUID}
Site                                      : 
Container                                 :

Tags

: code (x) powershell (x) win32_operatingsystem (x) wmi (x) Add a tag

Flag as ContentBug

Bug in LocalDateTime?

kkb22 ... kimllolll | Edit | Show History

There appears to be something wrong with how the LocalDateTime property is presented. Based on use of this property, I suspect it to be related to the DST change implemented in the fall of 2008. The spring shift to DST occurred on 03/08/2009 - and the value returned for this property is showing one hour earlier with the standard time offset. If I move my system clock forward one month to a date which was in DST under the previous rules, the value returned properly shows the actual hour and DST offset.

Tags

: contentbug (x) dst (x) offset (x) timezone (x) Add a tag

Syntax

Methods

Properties

Remarks

Examples

Requirements

See Also