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.
- BootDevice
- Data type: string
Access type: Read-onlyName of the disk drive from which the Windows operating system starts.
Example: "\\Device\Harddisk0"
- BuildNumber
- Data type: string
Access type: Read-onlyBuild 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-onlyType of build used for an operating system.
Examples: ""retail build"", ""checked build""
- Caption
- Data type: string
Access type: Read-onlyShort 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-onlyCode 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-onlyCreation class name of the scoping computer system.
- CSDVersion
- Data type: string
Access type: Read-onlyNULL-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-onlyName of the scoping computer system.
- CurrentTimeZone
- Data type: sint16
Access type: Read-onlyNumber, 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-onlyWhen 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-onlyData 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-onlyWhen 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-onlyIndicates 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-onlyOperating 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/writeDescription 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-onlyIf 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-onlyWindows Server 2003 and Windows XP: Encryption level for secure transactions: 40-bit, 128-bit, or n-bit.
- ForegroundApplicationBoost
- Data type: uint8
Access type: Read/writeIncrease 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-onlyNumber, 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-onlyNumber, 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-onlyNumber, 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-onlyDate object was installed. This property does not require a value to indicate that the object is installed.
- LargeSystemCache
- Data type: uint32
Access type: Read-onlyIndicates 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 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-onlyDate and time the operating system was last restarted.
- LocalDateTime
- Data type: datetime
Access type: Read-onlyOperating system version of the local date and time-of-day.
- Locale
- Data type: string
Access type: Read-onlyLanguage 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-onlyName of the operating system manufacturer. For Windows-based systems, this value is "Microsoft Corporation".
- MaxNumberOfProcesses
- Data type: uint32
Access type: Read-onlyMaximum 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-onlyMaximum 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 OS. 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-onlyMultilingual 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-onlyOperating system instance within a computer system.
- NumberOfLicensedUsers
- Data type: uint32
Access type: Read-onlyNumber of user licenses for the operating system. If unlimited, enter 0 (zero). If unknown, enter -1.
- NumberOfProcesses
- Data type: uint32
Access type: Read-onlyNumber of process contexts currently loaded or running on the operating system.
- NumberOfUsers
- Data type: uint32
Access type: Read-onlyNumber of user sessions for which the operating system is storing state information currently.
- OperatingSystemSKU
- Data type: uint32
Access type: Read-onlyStock 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 Basic 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-onlyCompany name for the registered user of the operating system.
Example: "Microsoft Corporation"
- OSArchitecture
- Data type: string
Access type: Read-onlyArchitecture 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-onlyLanguage 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 (FYROM) |
| 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-onlyInstalled 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-onlyType 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-onlyAdditional 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-onlyIf 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 SP4 and later: The PAEEnabled property is not available.
- PlusProductID
- Data type: string
Access type: Read-onlyIdentification number for the Windows Plus! operating system enhancement software—if installed.
- PlusVersionNumber
- Data type: string
Access type: Read-onlyVersion number of the Windows Plus! operating system enhancement software—if installed.
- Primary
- Data type: boolean
Access type: Read-onlySpecifies whether this is the primary operating system.
- ProductType
- Data type: uint32
Access type: Read-onlyAdditional system information.
| Value | Meaning |
| 1 | Work Station |
| 2 | Domain Controller |
| 3 | Server |
- QuantumLength
- Data type: uint8
Access type: Read/writeNumber of clock ticks per quantum. A quantum is a unit of execution time that the scheduler is allowed to give to an application before switching to other applications. When a thread runs one quantum, the kernel preempts it and moves it to the end of a queue for applications with equal priorities. The actual length, of a thread quantum, varies across different Windows platforms—Windows NT and Windows 2000 only.
| Value | Meaning |
| 1 | Unknown |
| 2 | One Tick |
| 3 | Two Ticks |
- QuantumType
- Data type: uint8
Access type: Read/writeLength type of quantums. Windows NT Workstation and Windows 2000 defaults to variable-length quantums where the foreground application has a longer quantum than the background applications. Windows NT Server defaults to fixed-length quantums. A quantum is a unit of execution time that the scheduler is allowed to give to an application before switching to another application. When a thread runs one quantum, the kernel preempts it and moves it to the end of a queue for applications with equal priorities. The actual length of a thread quantum varies across different Windows platforms. For Windows NT and Windows 2000 only.
| Value | Meaning |
| 1 | Unknown |
| 2 | Fixed |
| 3 | Variable |
- RegisteredUser
- Data type: string
Access type: Read-onlyName of the registered user of the operating system.
Example: "Ben Smith"
- SerialNumber
- Data type: string
Access type: Read-onlyOperating system product serial identification number.
Example: "10497-OEM-0031416-71674"
- ServicePackMajorVersion
- Data type: uint16
Access type: Read-onlyMajor 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-onlyMinor 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-onlyTotal 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-onlyCurrent 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-onlyBit flags that identify the product suites available on the system.
Windows 2000 and Windows NT 4.0 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-onlyPhysical disk partition on which the operating system is installed.
- SystemDirectory
- Data type: string
Access type: Read-onlySystem directory of the operating system.
Example: "C:\WINDOWS\SYSTEM32"
- SystemDrive
- Data type: string
Access type: Read-onlyLetter of the disk drive on which the operating system resides.
Example: "C:"
Windows 2000 and Windows NT 4.0 SP4 and later:
This property is not available.
- TotalSwapSpaceSize
- Data type: uint64
Access type: Read-onlyTotal 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-onlyNumber, 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-onlyTotal 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-onlyVersion number of the operating system.
Example: "4.0"
- WindowsDirectory
- Data type: string
Access type: Read-onlyWindows directory of the operating system.
Example: "C:\WINDOWS"
This script runs on Windows 2000 and Windows XP.