How to tests whether the current user is a member of the Administrator's group ?

[Ky Nam]

I currently use IsUserAnAdmin() api function , MSDN : Minimum DLL Version shell32.dll version 5.0 or later Custom Implementation No Header shlobj.h Import library shell32.lib Minimum operating systems Windows 2000 But many users reported this function doesn't exist in Windows 2000 How to tests whether the current user is an admin ? Thank you

[Dave Kreskowiak]

It does exist, it's just not exported by name. According to the export list of Shell32.dll on Windows XP, IsUserAnAdmin is ordinal #680 (decimal). The oridnal number should not change between versions, so it should be the same in the Windows 2000 version. So, in order to use it in Windows 2000, you have to specify the function's ordinal number instead of its name. If I remember correctly, its Declare looks like this:

Declare Function IsUserAnAdmin Lib "shell32.dll" Alias "#680" () As Boolean

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Dave Kreskowiak Microsoft MVP Visual Developer - Visual Basic
     2006, 2007

[Ky Nam]

Thank you