I have been running Windows Live Mail 2012 with Windows 7 for my 5 e-mail accounts quite satisfactorily until very recently.  Now the program will not run at all.  I receive the message "Windows Live Mail could not be started.  It may not be installed correctly.  Make sure that your disk is not full or that you are not out of memory (0x80041161)".  Disk space is not a problem and memory seems to be a red herring.

When I try to Uninstall/Change Windows Essential 2012 version 16.4.3528.0331 nothing at all happens.

When I try to run wlsetup-web.exe, I get a "Bad Image" error saying "C:Windowssystem32RstrtMgr.DLL is either not designed to run on Windows or it contains an error......" I am then advised to contact my system administrator (which is me) or the software vendor for support.

I located another copy of the DLL for comparison.  Both are dated 14/07/2009, the original is timed at 02.41 with size 184kb.  The other copy is timed at 02.16 with 149kb.  However, I am prevented from deleting or renaming the original file.

So I need support from the software vendor please.