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DllNotFoundException Class

The exception that is thrown when a DLL specified in a DLL import cannot be found.


Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)

public class DllNotFoundException : TypeLoadException

The DllNotFoundException type exposes the following members.

Public methodDllNotFoundException()Initializes a new instance of the DllNotFoundException class with default properties.
Public methodDllNotFoundException(String)Initializes a new instance of the DllNotFoundException class with a specified error message.
Protected methodDllNotFoundException(SerializationInfo, StreamingContext)Initializes a new instance of the DllNotFoundException class with serialized data.
Public methodDllNotFoundException(String, Exception)Initializes a new instance of the DllNotFoundException class with a specified error message and a reference to the inner exception that is the cause of this exception.

Public propertyDataGets a collection of key/value pairs that provide additional user-defined information about the exception. (Inherited from Exception.)
Public propertyHelpLinkGets or sets a link to the help file associated with this exception. (Inherited from Exception.)
Protected propertyHResultGets or sets HRESULT, a coded numerical value that is assigned to a specific exception. (Inherited from Exception.)
Public propertyInnerExceptionGets the Exception instance that caused the current exception. (Inherited from Exception.)
Public propertyMessageGets the error message for this exception. (Inherited from TypeLoadException.)
Public propertySourceGets or sets the name of the application or the object that causes the error. (Inherited from Exception.)
Public propertyStackTraceGets a string representation of the immediate frames on the call stack. (Inherited from Exception.)
Public propertyTargetSiteGets the method that throws the current exception. (Inherited from Exception.)
Public propertyTypeNameGets the fully qualified name of the type that causes the exception. (Inherited from TypeLoadException.)

Public methodEquals(Object)Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Protected methodFinalizeAllows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
Public methodGetBaseExceptionWhen overridden in a derived class, returns the Exception that is the root cause of one or more subsequent exceptions. (Inherited from Exception.)
Public methodGetHashCodeServes as a hash function for a particular type. (Inherited from Object.)
Public methodGetObjectDataSets the SerializationInfo object with the class name, method name, resource ID, and additional exception information. (Inherited from TypeLoadException.)
Public methodGetTypeGets the runtime type of the current instance. (Inherited from Exception.)
Protected methodMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodToStringCreates and returns a string representation of the current exception. (Inherited from Exception.)

Protected eventSerializeObjectStateOccurs when an exception is serialized to create an exception state object that contains serialized data about the exception. (Inherited from Exception.)

DllNotFoundException uses the HRESULT COR_E_DLLNOTFOUND, which has the value 0x80131524.

For a list of initial property values for an instance of DllNotFoundException, see the DllNotFoundException constructors.

The DllNotFoundException is thrown when a dynamic link library defined by the System.Runtime.InteropServices.DllImportAttribute attribute or a comparable language construct, such as the Visual Basic Declare statement, cannot be found. It is not thrown when the common language runtime is unable to load a .NET Framework assembly.

Note that the DllImportAttribute can specify the path to the directory in which the DLL resides. If a path is not specified, Windows uses the search order described in Dynamic-Link Library Search Order.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.