Hi Andre,

> Install third app that does not have any registry key in at all now -
> trashes the first app registry key.

Use Process Monitor to monitor changes to this key and see exactly WHAT
is changing it. Is this the same machine where you ran into the lib
file being removed? If so, I would take a very close look at your AV.

Best regards,

--
Arnor Baldvinsson
Icetips Alta LLC