This value is used with MarshalAsAttribute to indicate how types should be marshaled between managed and unmanaged code. In some cases, you can use this field with certain UnmanagedType enumeration members. For CustomMarshaler and ByValArray, you must use additional named parameters.
Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.