Registry entries for Browsers

[Buffalo]

Where in the Registry does it direct where 'links' in emails will go (which
browser will it use)?
I have both IE and FireFox.
After some corruption with FireFox (set as my default browser) after downloading
and installing some extensions, I received errors in FireFox and finally
uninstalled it.
When I reinstalled it I had more of the same.
Example:
"FIREFOX caused an invalid page fault in
module <unknown> at 0000:00000013.
Registers:
EAX=00e8730c CS=018f EIP=00000013 EFLGS=00010207
EBX=80000000 SS=0197 ESP=00c9e88c EBP=00c9e8a4
ECX=00e83010 DS=0197 ESI=00e83010 FS=108f
EDX=00e82614 ES=0197 EDI=00000000 GS=0000
Bytes at CS:EIP:
00 54 ff 00 f0 79 ea 00 f0 21 ea 00 f0 00 00 bb
Stack dump:
602def98 00e83010 00a12f6c 00000000 00000000 80000000 00c9e95c 004a18f2 00e83010
00a12f6c 00000000 00dd1920 80000000 00000000 00000000 00c9e940 "

I again uninstalled FireFox.
I finally renamed my Mozilla folder in C:\Windows\Application Data\Mozilla, and
again installed FireFox, it worked.
I then copied my Bookmarks to the appropiate folder and all seemed OK.

I selected to make Mozilla my default browser, but links in email, etc still
opened in IE even though IE was not the default browser.

Finally, I made IE my default browser and then when I opened FireFox, it
informed me ,rightly so, that FireFox was not my default browser and I selected
to make it so.
Now all the links open in FireFox, just like before.

Was there some change to the Registry that made this happen?
If so, what is the key?
Thanks

[Hugh Candlin]

"Buffalo" > wrote in message
...
> Where in the Registry does it direct where 'links' in emails will go
(which
> browser will it use)?

HKEY_CLASSES_ROOT\http\shell\open\command

[Buffalo]

"Hugh Candlin" > wrote in message
...
>
> "Buffalo" > wrote in message
> ...
> > Where in the Registry does it direct where 'links' in emails will go
> (which
> > browser will it use)?
>
> HKEY_CLASSES_ROOT\http\shell\open\command

Thank you very much.