On December 27, 2003 12:40 pm, Zimler Attila wrote: > Can somebody help me in what is the standard way to query if a key > exists in the registry? I try to implement addig new key in regedit. For that purpose, just use RegOpenKeyEx(): http://msdn.microsoft.com/library/default.asp?url=/library/en-us/sysinfo/base/regopenkeyex.asp -- Dimi.