Dear DavidR,
Thank you for ur response.
Yeah i checked it, one can run directly from avast4 folder.And regarding remnants of previous anti virus, as per ur guidance, I ran registery cleaner and AVGREMOVAL tool, and all the remnants (if any) were completely removed.
Yep, I've been facing this problem since I installed avast! free home edition.
It happens only ist time in the current window session, that when I click on avast! anti virus, it doesn't appear, and what I've noticed, I just exit yahoo! messenger, then the avast! anti viurs interface appears.
And after that even if yahoo messenger is running, avast! interface opens if i click on it.
I don't know what exactly this problem is. May be I need to re install yahoo messenger.
Even ashSimp2.exe doesn't open (ist time in the current window session...that is I try it again it opens, but when i restart my pc, again the same problem happens).
It should not be a memory problem, as I've 1GB RAM.
Do u've any solution for this problem???
Regards.