Is Admin ?

prøv den her :

const
  SECURITY_NT_AUTHORITY: TSIDIdentifierAuthority = (Value: (0, 0, 0, 0, 0, 5));
  SECURITY_BUILTIN_DOMAIN_RID = $00000020;
  DOMAIN_ALIAS_RID_ADMINS    = $00000220;

function User_is_Adminstrator : Boolean;
var
  hAccessToken: THandle;
  ptgGroups: PTokenGroups;
  dwInfoBufferSize: DWORD;
  psidAdministrators: PSID;
  x: Integer;
  bSuccess: BOOL;
begin
  Result := False;

  bSuccess := OpenThreadToken(GetCurrentThread, TOKEN_QUERY, True, hAccessToken);
  if not bSuccess then
    if GetLastError = ERROR_NO_TOKEN then
      bSuccess := OpenProcessToken(GetCurrentProcess, TOKEN_QUERY, hAccessToken);

  if bSuccess then
  begin
    GetMem(ptgGroups, 1024);
    bSuccess := GetTokenInformation(hAccessToken, TokenGroups, ptgGroups, 1024, dwInfoBufferSize);
    CloseHandle(hAccessToken);

    if bSuccess then
    begin
      AllocateAndInitializeSid(SECURITY_NT_AUTHORITY, 2, SECURITY_BUILTIN_DOMAIN_RID, DOMAIN_ALIAS_RID_ADMINS, 0, 0, 0, 0, 0, 0, psidAdministrators);

      for x := 0 to ptgGroups.GroupCount - 1 do
        if EqualSid(psidAdministrators, ptgGroups.Groups[x].Sid) then
        begin
          Result := True;
          Break;
        end;
      FreeSid(psidAdministrators);
    end;
    FreeMem(ptgGroups);
  end;
end;

Der virker i hvertfald på Windoes 2000

Tak .. Der virker iøvrigt også på NT 4.0

Jens B