Question : Redistributing MFC run-time.

I have application that needs distribution of just a couple of PCs.
I need to install the run-time dll for VC++ 6.0 but I cannot just copy in the MFC42.dll etc because these file are in use. Is there an install program or some way of upgrading these run-time files?

Answer : Redistributing MFC run-time.

Replacing DLLs in Memory
http://msdn.microsoft.com/isapi/msdnlib.idc?theURL=/library/psdk/buildapp/setup_66es.htm

HOWTO: Move Files That Are Currently in Use
http://support.microsoft.com/support/kb/articles/Q140/5/70.asp

Redistributing Microsoft Visual C++ 6.0 Applications
http://msdn.microsoft.com/isapi/msdnlib.idc?theURL=/library/techart/redistribvc6.htm