Not getting full SID of user with help of NetQueryDisplayInformation

Question

 

I’m writing an application on Windows XP which gives the SID of  user.

With the valid Token Handle,  when I call GetTokenInfomation  API with TokenUser as a second parameter then every time & for all  user account I get Valid SID  in PTOKEN_USER structure variable.

Valid Sid =>  Sid is S-1-5-21-1121170692-2157880286-4158546613-1000

Here RID is  => 1000

But when I use NetQueryDisplayInformation  API with NET_DISPLAY_USER   as a information level  (second parameter)  then I get  NET_DISPLAY_USER  structure as a out Parameter.

User123 is my one account which has the administrative rights.

With the help of NET_DISPLAY_USER structure when I call to LookupAccountName  API with variable of NET_DISPLAY_USER.usri1_name  as a name of the user account  then for a User123 account I get SID without RID.

e.g.

Like this =>  Sid is S-1-5-21-1121170692-2157880286-4158546613

For other account with same procedure gives me the correct SID i.e. SID with RID

e.g.

Valid Sid =>  Sid is S-1-5-21-1121170692-2157880286-4158546613-1000

Please provide me any pointers for returning SID without RID in second case.

Thanks in Advance,

Amol