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