Getting the User Name for a Process

[Rajesh_Parameswaran]

Hi there, I'm working on a Application developed using Visual Studio 2008 (VC++). I'm looking for a way to get the name of the current user session using the process ID. My intention here is to check for a particular process (AA.exe) and see this is not running for a current user. I'm using the CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, NULL) to get the list of process, and traverse thru the list for a matching AA.exe process. But this returns the list of processes from all users. I've gone thru the example: List Processes Which Are Created By Specific Users[^] But the function LookupAccountSid() returns 0 and the get last error also returns 0. The value of the username field seems to be NULL. Kindly let me know, if there are any other ways to get the name of the current user session using the Process ID. Thanks in advance. regards, Rajesh

[Mark Salsbery]

In the call to LookupAccountSid() both cchName and cchReferencedDomainName are uninitialized. If you set them to 255 before the call does it work then?

Mark Salsbery Microsoft MVP - Visual C++ :java:

[Rajesh_Parameswaran]

Thanks Mark. It worked after initializing those two variables. regards, Rajesh