// For Winnt set me as an approved shellex

        ElseIf o.dwPlatformId = VER_PLATFORM_WIN32_NT Then  '=== WinNT

        ElseIf o.dwPlatformId = VER_PLATFORM_WIN32_NT Then  '=== WinNT

        ElseIf o.dwPlatformId = VER_PLATFORM_WIN32_NT Then  '=== WinNT

        ElseIf o.dwPlatformId = VER_PLATFORM_WIN32_NT Then  '=== WinNT

    //#if(_WIN32_WINNT >= 0x0500)

    //#endif /* _WIN32_WINNT >= 0x0500 */

    //#if(_WIN32_WINNT >= 0x0500)

    //#endif /* _WIN32_WINNT >= 0x0500 */

    //#if(_WIN32_WINNT >= 0x0500)

    //#endif /* _WIN32_WINNT >= 0x0500 */

Comments are from WinNT.h

Comments are from WinNT.h

Comments are from WinNT.h

public struct SEC_WINNT_AUTH_IDENTITY

WINNT (for ANYSIZE_ARRAY)

        // winnt.h, Windows SDK v6.1

    // #if (_WIN32_WINNT >= 0x0501)

    // #endif // (_WIN32_WINNT >= 0x501)

    // #if (_WIN32_WINNT >= 0x0501)

    // #endif // (_WIN32_WINNT >= 0x501)

Some of the constants were contained within conditional compilation blocks; see the commented out sections. I removed conditional compilation blocks for assumptions that like WINNT and WINVER >= 0x0400 and WIN32WINNT >= 0x0500. See ShellAPI.h for the complete source.

Defined in WINNT.H

//#if(_WIN32_WINNT >= 0x0500)

//#endif /* _WIN32_WINNT >= 0x0500 */

//#if(_WIN32_WINNT >= 0x0500)

//#endif /* _WIN32_WINNT >= 0x0500 */

//#if(WIN32WINNT >= 0x0500)

//#endif /* WIN32WINNT >= 0x0500 */

//#if(WIN32WINNT >= 0x0500)

//#endif /* WIN32WINNT >= 0x0500 */

  '#If (WIN32WINNT >= 500) Then

  '#If (WIN32WINNT >= 500) Then

More information can be found on the MSDN. The values for the enumeration come from the WinNT header file.

    '/*#if (WINVER >= 0x0500) || (_WIN32_WINNT >= 0x0400)*/

    '/*#if(_WIN32_WINNT >= 0x0500)*/

    '/*#endif /* _WIN32_WINNT >= 0x0500 */

    '/*#if(_WIN32_WINNT >= 0x0501)*/

    '/*#endif /* _WIN32_WINNT >= 0x0501 */

    '/*#if(_WIN32_WINNT >= 0x0501)*/

    '/*#endif /* _WIN32_WINNT >= 0x0501 */

    '/*#if (WINVER < 0x0500) && (!defined(_WIN32_WINNT) || (_WIN32_WINNT < 0x0400))*/

    '/*#if(_WIN32_WINNT >= 0x0501)*/

    '/*#endif /* _WIN32_WINNT >= 0x0501 */

    WinNtAuthoritySid               = 7,

    WinNTLMAuthenticationSid            = 51,

pulRegDataType, Optional, can be NULL. A pointer to a location that receives the registry data type, specified as a REG_-prefixed constant defined in Winnt.h.

    '#if (_WIN32_WINNT >= 0x0500)

    '#endif // (_WIN32_WINNT >= 0x0500)

    '#if (_WIN32_WINNT >= 0x0500)

    '#endif // (_WIN32_WINNT >= 0x0500)

Seems to work for Win98, WinNT, WinXP, Win2K, and Win2003.

    /// "C:\Windows" on one system and "C:\Winnt" on another. These constants are defined in Shlobj.h and Shfolder.h.

' a WinNT version of the ConvertSidToStringSid function

' a WinNT version of the ConvertSidToStringSid function

  WinNT40 = 2

  WinNT50 = 3

  WinNT40 = 2

  WinNT50 = 3

     LOGON32_PROVIDER_WINNT35,

     LOGON32_PROVIDER_WINNT40,

     LOGON32_PROVIDER_WINNT50

     LOGON32_PROVIDER_WINNT35 = 1

     LOGON32_PROVIDER_WINNT40 = 2

     LOGON32_PROVIDER_WINNT50 = 3

    private const int TOKEN_READ = 0x00020008; //From VC\PlatformSDK\Include\Winnt.h

From MSDN: The GetProcessImageFileName function returns the path in device form, rather than drive letters. For example, the file name C:\Winnt\System32\Ctype.nls would look as follows in device form:

\Device\Harddisk0\Partition1\WINNT\System32\Ctype.nls

        string localDirEntryString = "WinNT://" + computerName + ",computer";

        string domainDirEntryString = String.Format("WinNT://{0}", domainName);

        DirectoryEntry directoryEntry = new DirectoryEntry("WinNT://" + Environment.MachineName);

To compile an application that uses this function, define WIN32WINNT as 0x0400 or later.

Constants to pass for dwNotifyFilter. Found in winnt.h by searching for the ones used in the msdn example.