MS considers IE6 SP1 to be a Critical Update: http://snipurl.com/4bgz. The
author of that post, Anthony Grey, heads up the IE/OE sustained engineering
team at Microsoft.

Upgrading will necessitate two (2) visits to Windows Update: One to install
IE6 SP1 (and reboot), then another to install post-SP1 updates for both IE
and Win98. To assure a clean install, your anti-virus application should be
disabled and all other running processes closed before installing anything,
including Windows Updates.

Early versions of IE6 SP1 proved troublesome for a small minority of Win98
users but such bugs have been addressed and trouble us no more. Don't let
anyone else tell you differently. (And don't believe a word of what
Colorado says! eg)
--
~Robear Dyer (PA Bear)
MS MVP-Windows (IE/OE)


Eugene Fridman wrote:
I'm thinking of upgrading Internet Explorer 5.50 to 6 SP1 on my Win '98SE
system.

Are there any reasons not to?

Please share your experience.

TIA, Eugene