I'm using Windows XP Pro SP3. The problem concerns following programs:
Online Armor Premium ( v 22.214.171.1247)
Aston ( v 1.9.5)
BOINC (manager version 6.12.26)
Note: Aston is an alternative shell for Windows. BOINC is a distributed computing system. On the top there is BOINC Manager which executes projects execs.
I'm using also Emsisoft Anti-malware.
When I run BOINC the system is very sluggish and I can see how system tray and clock are repainting. If I change Windows shell back to Explorer everything is fine, but I don't want Explorer.
I installed OA with Trust Everything setting - it didn't help
I disabled HIPS features - it helped, but it's quite weak solution