Java Applets not working using IE 6 after uninstalling software

I uninstalled some software on WinXP using Add/Remove, however the software still left remnants on my system. I tried to removing all the entries in the registry with RegEdit....I will confess I am a rookie with that tool, however now IE 6 will not launch Java Applets on the web sites I visit.
I also have Mozilla Firefox 8 installed and Java Applets work fine using that browser. Do I have to reinstall WinXP to correct IE 6, or is there an easier alternative?
Thanks for any suggestions
Gerry

Please check out in the IE Explorer Tools--> Internet Options --> in this Advanced tab this will display you with the set of options and chceck boxes...
in that please check out that whether the Java(SUN) --- (USe Java....<applet> Requires reStart...
is existing or not if existing please check it and restart the system.
if it is not existing in your broser then you have to install the JRE in the system for your Applet to work..
That can be downloaded form...
http://www.java.com/en/download/manual.jsp
Here go for windows....
All The Best..

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