I've had the same problems as many have described here, random Blue
Screens and browser failure. I discovered KB891711 on my own before
doing any research online, and I disabled KB891711 from msconfig and
then uninstalled it using Add/Remove programs, but not from Safe Mode
(as I said, I hadn't done any research and I wasn't really having
bootup problems, mostly the browsers seemed to be affected).  I also
used Reg Edit to remove every trace of it from my registry.  I noticed
that one of the hits I got when I searched the registry for KB891711,
was my AOL dialer .exe file, so I reinstalled my AOL software, and
Firefox as well for good measure.

After all that, I'm still having browser problems.  The odd exception
is that the browser within AOL works fine, but both Firefox and IE
return "page not found" no matter where I try to go. My Norton Internet
Security has a traffic monitor that shows normal traffic in/out of the
computer when I load a page within AOL, and shows zero traffic while IE
and Firefox attempt to load the home page.  (And since IE is still my
default browser, another consequence of this is that I've also not been
able to update my virus profile since last Friday night.)

Who the heck wants to surf the Internet through AOL's funky window
after you've gotten used to the joy that is tabbed browsing in Firefox?
I know, I know - who the heck is still on AOL anyway?  Normally I'd
agree with you, but in this case having AOL saved my behind and is my
only outlet to the Internet right now.

Does anyone have any other suggestions? The only thing I can think of
short of wiping my hard drive clean and reinstalling everything, is
doing a "clean" AOL install - that is, uninstalling it, and then
reinstalling as opposed to just reinstalling over the last version -
just in case the AOL software doesn't reload common files and the AOL
dialer that was corrupted by KB891711 is still there.  Just a
thought...could it be possible that the AOL software has something in
it that disables browsers other than theirs?  Now that I think of it, I
got the disk I used for the AOL reinstall last Thursday, and I started
noticing the browser problem on Saturday evening.  

HELP!!!!!!