BSOD's during scanning


I recently started using CIS and like the product. Bad news is that I cant seem to scan my computer without incurring a BSOD. When a full scan works, it takes about 40 minutes, but usually after about 10-15mins, clunk, the computer craps out.

I’ve attached five mini dumps which all point to cmdagent.exe as the most likely candidate.

I’m using XP SP3 on an x32 bit machine
CPU: Intel Pentium 4, 2833 MHz (14 x 202) - Chipset: Intel Springdale i865PE - RAM: 1GB DRAM
Mobo: MSI 865PE Neo2-S (MS-6728) (5 PCI, 1 AGP, 4 DDR DIMM, Audio)
HDD: WDC WD1200JB-00DUA3 (111 GB, IDE) with 70% Free space

I have no other AV running.
No other firewall except for the Windows Firewall.
I have SpywareBlaster and SpyBotS&D, both are passive (i.e. no SpyBot teatimer active).
CIS version 3.12.111745.560, current update is 2493
CIS setup is default (i.e. out of the box setup).

I have tested my memory using MemTest and done a chkdsk, neither showed errors.
No rogue process are running, all are standard Microsoft except for LogiTech Mouseware, SecureRemote, UPHClean, HDDHealth which are all ‘idle’ (excluding cmdagent and cfp of course).
Same BSOD’s occur if I disable all non-Microsoft startup items/services
Hard drive health monitored by HDDHealth is ‘excellent’
CPU temperature is normal
BSOD events are shown under the System category, there are no events under the Application category
All drivers are up to date
There are no outstanding Microsoft/Windows updates pending
Only additional hardware connected is NetGear router and USB hub
No drivers/hardware shows a warning in device manager
The minidumps mention using the Verifier tool, Im not aware of how to use that.

p.s. I’ve worked out how to use verifier.exe and ran all drivers through it. No errors were detected.

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Thank you for the submission. I assume Windows Firewall is switched off?

I just checked to make sure and it is off.