How to remove a specific version of a runtime DLL from Vista
- From: "Fritz" <fritz@xxxxxxxxxxxx>
- Date: Mon, 28 Jul 2008 09:59:32 -0400
Hi,
I have two versions of MFC80U.dll installed on one my Vista systems (via
Windows side-by-side/winsxs). I'm trying to install a piece of software and
the installer stops responding complaining about MFC80U.dll. Upon further
inverstigation I can see that the system has two different versions of that
DLL installed in C:\Windows\winsxs and a wrong version of it is being used
when I run the installer. I have another Vista system with only one version
of the DLL and the installer works fine on it. My question is: how do I
remove the newer version of the DLL from the malfunctioning system or
redirect the installer to use the older version? I tried deleting the
folder with the newer version in c:\windows\winsxs but it gave me a message
saying that I don't have the right permissions even though I took ownership
of the entire folder and its contents. I also tried "cd'ing" into the
directory from the command line and running "regsvr32 /u" but the DLL failed
to unregister? Any ideas?
Thanks! :D
.
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