chuft

I see no quarantined files so they must have been intercepted during the copying process two years ago.  I probably just clicked through it since I figured I could always extract them again if needed.  That's the only way I can think of that the setup exe's would be missing from a folder I copied and forgot about in Nov 2019.

In case someone is reading this later, my old antivirus was Webroot and new one is Kaspersky.

Since I deleted nothing from the folder, indeed I hadn't even looked at it since building this computer and copying stuff over, your comment made me go look at the old computer with its folder that I copied.  And all the exe's are still there, but they are not here.  I can only assume my antivirus (which is different on the new computer) removed them for some reason since I can't imagine a reason to manually do so.

WeiDU is rather mysterious to me but I guess you are saying the widescreen one would have noticed there was a newer version and used that if it was available, and it was not available this time, because it had been somehow removed. 

This made me curious enough to take out my old computer and look at the BG2 folder that I had copied to my new one.  It does have Widescreen 3.07 and the exe and the setup and debug files, with no errors.  So it did work fine on my last computer but not on this one.

I can only assume it had something to do with going from Windows 7 to Windows 10.  The folder contents are identical.

It was Widescreen 3.07.  I guess the question is why did it work before, since I added nothing new to the folder, and deleted nothing either.  The only thing I can think of is I did not play the game using it, but that seems hard to believe.

Never mind, got some help on Gibberlings 3 from Jarno.