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GetTokenInformation fails (error 998) on windows server 2003 but works on 2008

Hi,
I have a problem when calling GetTokenInformation,
for some reason it fails on windows server 2003 32bit but succeeds on server 2008 64bit.
   PTOKEN_USER pSIDTokenUser = NULL;
   DWORD       dwReturnLength;   
   
      if (!GetTokenInformation(hToken, TokenUser, NULL, 0, &dwReturnLength) && GetLastError() != ERROR_INSUFFICIENT_BUFFER)
      {
               //handle error
      }

      pSIDTokenUser = (PTOKEN_USER)new BYTE[dwReturnLength];
      memset(pSIDTokenUser, 0, dwReturnLength); 


      if (!pSIDTokenUser)
               //handle error

      if (!GetTokenInformation(hToken, TokenUser, pSIDTokenUser, dwReturnLength, NULL))
               //handle error 

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the second call to GetTokenInformation on windows 2003 always return 0 with the error 998 ("Invalid access to memory location").
I assume it has something to do with the pSIDTokenUser size/alignment (I use the default)  etc, but could not find the reason.

Thanks.
0
Cyber-EE
Asked:
Cyber-EE
1 Solution
 
Cyber-EEAuthor Commented:
Found the answer:
last parameter is not optional. you need to pass it even though it is not used.
this was probably fixed in 2008, since its works there.
0

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