I ran into what seems to be a unique problem with Windows 8.1 and a program called ACBLScore.
The latter is a poorly-written program with an ancient UI (copyright 1991!!). It has a Setup mode in which you set the pathnames to three important directories. It appears to accept long path names but when it runs, it turns out that ACBLScore has truncated the pathnames to 40 characters!
What's weird about this is that no truncation occurs when the program is installed on a Win 7 machine!!!
Any ideas as to what's happening?