b. Jefry Weiker writes: "DiskDup 2.8 seems to be incompatible with Mac OS 7.6. It worked fine with 7.5.5, but now freezes during the the read process. Going back to version 2.71 works."
c. Walter Bremer writes that SAM Intercept 4.5 conflicted with the new Extensions Manager, leading to incorrect displays in the Extensions Manager window and system freezes. Of course, as reported here before, SAM had problems even in System 7.5.