I ran a search inside the forum, and didn't find a message thread I'd seen using Google's Search (I think I know why, now, though). I have a second computer, not the one I'm using to visit the forum today. This one has both Windows 7 and Windows 8.1.
Th old computer is going to be running old games using DOSbox atop of Windows XP, and I wanted to use the Avast Free Offline Installer. The second machine will actually seldom be physically connected to the Internet, nevertheless, I will have exposure when locating and installing the games themselves.
Both copies I have tried of the Offline Installer have been rejected by the Windows XP / SP3 on the old PC, with the report that it isn't a "valid Win32 file" (or very similar compaint. It might use the term "application". Interestingly, an AVG offline installer ran, although THAT one now tells me it will have expired in December, 1969, twelve years before any IBM-PC / X86 desktop existed, and seventeen years before Windows 1 existed.
I'd thought I might have preferred to have found one of the message threads already about the Avast error situation, since that's the AV I'm using on this, my primary system. Perhaps you can direct me to a better choice than this thread is.
P.S. I'm editing this. I looked again at what Google found, and it was mostly threads in here from 2008, with a couple of them only as recent as 2013!
Thank You in Advance,
Kiwi