Using RegOpenKeyEx

I have a question about finding if a specified app is installed on a machine or not.
I use:
RegOpenKeyEx(HKEY_CURRENT_USER, SUBKEYTOPATH, &H0, KEY_READ, dwKey) and on most machines get a return code of , which is fine, but on some machines I get a return code = 2 even if the specified app is installed on the machine. Any ideas on what a return code of 2 means? Any ideas on how do do it better?

Hi Innofin,

I've had a similar problem before and it was due to user privilages and the type of OS the machine was running.

Try using KEY_QUERY_VALUE instead of KEY_READ.

Hope this helps.

Let me know if it worked. Gibbo

:)