Public Function W2KRunAsUser(ByVal UserName As String, _
        ByVal Password As String, _
        ByVal DomainName As String, _
        ByVal CommandLine As String, _
        ByVal CurrentDirectory As String) As Long
 
    Dim si As STARTUPINFO
    Dim pi As PROCESS_INFORMATION
 
    Dim wUser As String
    Dim wDomain As String
    Dim wPassword As String
    Dim wCommandLine As String
    Dim wCurrentDir As String
 
    Dim Result As Long
 
    si.cb = Len(si)
 
    wUser = StrConv(UserName + Chr$(0), vbUnicode)
    wDomain = StrConv(DomainName + Chr$(0), vbUnicode)
    wPassword = StrConv(Password + Chr$(0), vbUnicode)
    wCommandLine = StrConv(CommandLine + Chr$(0), vbUnicode)
    wCurrentDir = StrConv(CurrentDirectory + Chr$(0), vbUnicode)
 
    Result = CreateProcessWithLogonW(wUser, wDomain, wPassword, _
          LOGON_WITH_PROFILE, 0&, wCommandLine, _
          CREATE_DEFAULT_ERROR_MODE, 0&, wCurrentDir, si, pi)
    ' CreateProcessWithLogonW() does not
    If Result <> 0 Then   'Result ist bool Wert.
        'genau hier:
        WaitForSingleObject pi.hProcess, INFINITE
        CloseHandle pi.hProcess
        W2KRunAsUser = 0
    Else
        W2KRunAsUser = Err.LastDllError
        MsgBox "CreateProcessWithLogonW() failed with error " & _
          Err.LastDllError, vbExclamation
    End If
 
End Function