Hello loner!
1. Why do I have to uninstall UR1 first and reinstall it afterwards?
2. Does avast need a recent version of Internet Explorer (like Avira does) cause I still have 5.0 installed?
1.
You misunderstood, in my post was no instruction for uninstallation.
Windows 2000 SP4 AND UR1 must be installed on your system BEFORE you start the avast!-Setup-file - or you will get an error message.
2.
I don't think so, but cannot confirm this exactly.
For your information:
Notebook A has IE5.0, and avast! 7 installed.
Notebook B has full updates with IE6.0 SP1 and avast! 8 installed.
INGBEAN