GetCurrentHwProfile is not unique ?

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I was trying to make an hwid checker, i use this code from msdn to get the hwid or szHwProfileGuid of the user

C++

int main() 
{
   HW_PROFILE_INFO HwProfInfo;
   if(GetCurrentHwProfile(&HwProfInfo) != NULL)
   {
       printf("DockInfo = %d\n", HwProfInfo.dwDockInfo);
       printf("Profile Guid = %s\n", HwProfInfo.szHwProfileGuid);
       printf("Friendly Name = %s\n", HwProfInfo.szHwProfileName);
   }
   
}

so i gave this file that grab their supposedly hwid, but now i have like 10 users having the same profileguid which is {846ee340-7039-11de-9d20-806e6f6e6963}

any reason why ? or is there something wrong with the code above ?

thanks in advance,

Posted 10-Jun-13 23:44pm

Ronni2013

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CPallini · Answer 1 · 2013-06-11T00:00:00

Solution 1

Form the documentation[^], I guess the GUID is specific of the hardware, not of the user.

Posted 11-Jun-13 0:00am

CPallini

Aicu · Answer 2 · 2013-06-11T00:09:00

In short, the API

C++

GetCurrentHwProfile()

does not return an unique id to distinguish between different PC/User account. Just google that GUID you posted.

If you want to have an unique id, call

C++

CoCreateGuid()

and store it at client PC for later checking.

Another way is combining net card MAC, disk serial number, and other things to form an unique id.