>I have an existing app at a client’s site. I added a new form that uses the treeview control.
>
>I followed the steps on article Q14621 “Register an ActiveX Control (.ocx) Manually”.
>
>I copied comctl32.ocx, comctl32.dep and regsvr32.exe into the windows\system directory.
>
>I registered the ocx using regsvr32.exe and received the message that it succeeded.
>
>On one machine running win95 when I launch the form with the ocx on it I still get the ocx is not registered message, but on the other machines it runs fine.
>
>I have found that the files mfc30.dll, mfc40.dll, olepro32.dll, msvcrt40.dll and msvcrt20.dll are in the registry on the machine that runs fine.
>
>Is this part of the problem?
>What am I missing?

I spent HOURS with an OLE problem yesterday and posted a message this AM. I read yours and verified the list of files. I was missing OLEPRO32.DLL even though it was in the registry. All is fine now. I would put all these in the system diectory of the non-working PC and I'll bet it works.
...and Thanks a lot for you question and fix to my problem!