Hi,Crash dump is sent to diagnostics
Auto reboot at startup Windows
Crash dump directory: C:\WINDOWS\Minidump
On Thu 01.21.2010 20:45:05 your computer crashed
This was likely caused by the following module: aswsp.sys
Bugcheck code: 0x10000050 (0xA8A56000, 0x0, 0x8053A593, 0x0)
Error: Unknown
Dump file: C:\WINDOWS\Minidump\Mini012110-03.dmp
file path: C:\WINDOWS\system32\drivers\aswsp.sys
product: avast! Antivirus System
company: ALWIL Software
description: avast! self protection module
My configuration ,Windows XP SP3, Avast 5 Home +Commodo (only firewall, active guard disable)+Spyware Doctor(ThreadFire disable)
Returned back on to 4.8 version
P.S.
Find temporally solution to prevent BSOD and returned to Avast 5 and Power DVD, works fine

In Setting /Troubleshooting menu
Mark “Load avast! Services only after loading other system services”