I get an error during installation of MS office 2007 pro
Error 1913: Setup cannot update file C:/windows/win.ini.
Verify that the file exists in your system and that you have sufficient
permissions to update it
This happens when I try to upgrade MS Office XP which is office 2002
and I get it while trying to upgrade MS business Office 2003.
I have tested in multiple senarios with XP and Windows 7 and found that in most case its due to Office trial version previously removed. However this was unaffected by other version of Office until 2007. There does not seem to be a valid fix or explaination anywhere on the web except for my post explaining how to overcome this extreme annoyance with MS trial software, irritation and time consuming to say the least!
To top this off, the one and only MS reference to it in a support article, yeah that does nto work and only applys to XP and server 2003.