how can i remove the ashshell.dll?

Please help me with my prob. to delete Ashshell.dll file.
There is no avast in the add/remove file so i try to corrupt the file but the ashshell.dll wont remove.
I’ve tried already deleting the file from the safe mode but it didn’t work also.
any suggestion may be a big help txn.!!!

why do you want to remove the ashshell.dll i think avast needs that file to run normally

because i want to upgrade the avast that I’m using, as I’ve said earlier i corrupt the folder and the only thing that is left is the ashshell.dll file so i need to remove it to install another avast

have you tried to boot into safe mode and use http://www.avast.com/uninstall-utility to see if that works?

it works bro tnx a lot, last question what is the best avast antivirus?

I’ll wait and let the others answer this question because i haven’t really used the other versions but the free version. ;D

LOL anyway tnx again ur a big help!!