Problem statrting avast

[raiderfan]

 I am using Windows XP with Service Pack 2. I just installed the home edition of Avast 4.6.  Avast scanned the boot drive okay.  However, it didn't start.  I received a message saying ashBase.dll was not found. 

Could the down load have been corrupted or is there another problem?

Thanks

Raiderfan

[Lisandro]

Maybe this helps... http://forum.avast.com/index.php?topic=12.0