When system was loading avast service at boot up, a BSOD error occurred as 0x000000c2 (0x00000007, 0x00000cd4, 0x02a80000, 0x89800008) BAD_POOL_CALLER. System is windows XP SP2 with the newest patches ,and Avast is free edition 5.0.545 with behavior shield enable. A previous post here said the error was due to the Avast 5 behavior shield kernel driver and attached is the mini dump file of the BSOD error. Hopefully it can help the Avast tech team to fix this issue. 
anyone of Avast team has noticed the post yet?
Some countries in europe have a holiday today… 
asyn