Reinstalling WinXP Service Pack 2

G

I am planning to reinstall SP2 as some of the ie and system files got corrupted.
I made this decision after trying to uninstall ie7 beta which made my ie corrupted and chm/help files
are not working.

I have installed few patches after installing SP2 like Hotfixes,alt+tab controller,clear type font
etc..

Now please advice me on the following
1.Can I reinstall SP2 without unistalling it or any of the patches?
2.Will it create system instability?
3.Can ie and chm related system files alone can be restored?I am saying this b'caz i couldnt able to
unistall ie7 to get back to ie6 or reinstall them again with ie7 rc1

G

Go to Windows update & check for any updates first of all, there was one KB article regarding CHM files in windows, their handling, i think one of those is missing now

U can also do one thing, just go to control panel -> Add\remove programs-> Uninstall Windows component, & uninstall IE 6 & then reinstall IE 7, this will fix it

or install maxthon browser, it is IE6 with tabs.