On my win7 SP1 (32bit) netbook the avastui.exe had a memory error requiring Termination - see attached image.
I have upload the 7zip of the mdmp file and .status file, the 7zip name uploaded is Davidr_avastui-exe_mdmp.7z.
This happened shortly after coming out of sleep and presumably during a VPS update as I got the update (without update popup or voice over) before is had the memory error.
I too have had the same Problem (Win7 SP1 64bit). My PC is left on all night, normally asleep so that it can do a scheduled image backup during the night. The message was there when I woke my PC up this morning!
I had this problem when I updated from V8 to V9. I have Windows 7 professional 32-bit SP1
What I did is:
1- Restart in safe mode then change in the registry “C:\Program Files\AVAST Software\Avast\AvastUI.exe” /nogui to be: "C:\Program Files\AVAST Software\Avast\AvastUI.exe /nogui"
2- Restart normally. Make sure that Avast is not started (check services in Task manager)
3- Restart in safe mode then change in the registry “C:\Program Files\AVAST Software\Avast\AvastUI.exe /nogui” to be: “C:\Program Files\AVAST Software\Avast\AvastUI.exe” /nogui
4- Restart normally then everything was working fine with Avast.