Chris Hart started getting Type 11 errors in America Online 3.0 as soon as he installed the new ObjectSupportLib 1.2. Reverting to version 1.1.4 eliminated the crashes.
On the other hand, Thomas Unterburger reports that OSL 1.2 fixed a conflict he had whereby other TCP applications (such as Netscape) would not run after using AOL.
Mike Shannon writes: "Since installing ObjectSupportLib 1.2, my system has become much more stable.&… Read more
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.
Update: Fred has now determined that this problem is primarily due to MS Works (particularly the Microsoft Ole extension and the Microsoft Ole Library), not RAM Doubler 2. It can happen even with Apple's virtual memory.