Assembly: mscorlib (in mscorlib.dll)
If the CharSet field is set to CharSet.Unicode, all string arguments are converted to Unicode characters (LPWSTR) before being passed to the unmanaged implementation. If the field is set to CharSet.Ansi, the strings are converted to ANSI strings (LPSTR). If the CharSet field is set to CharSet.Auto, the conversion is platform dependent (Unicode on Windows NT, Windows 2000, Windows XP, and Windows Server 2003 family; ANSI on Windows 98 and Windows Me).
Windows 98, Windows 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 .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.