I can't update McAfee VirusScan while SpywareBlaster is installed in my computer

This is the symptom :

I have used McAfee VirusScan v 9.1 and SpyBot S&D v 1.3 for six months. After I had read SpyBot S&D recommendation to download and install
SpywareBlaster for more protection, I installed it. After I have installed, run, enabled all items and updated SpywareBlaster, I noticed that McAfee
Auto Update has never run anymore. So, I had to update it manually. When I logged in McAfee Services, the updater windows told me that there
were some system errors occured. It recommended to restart computer and reinstall McAfee VirusScan. I followed its recommendation, but this
symptom still occured. So, I try uninstalling SpywareBlaster. After unistalling SpywareBlaster, I can update my McAfee VirusScan again.

I think this is because SpywareBlaster has disabled some activeX controls which McAfee Updater has to use them to run. Could anyone tell me
which item I have to disable it in SpywareBlaster?

Note: Sorry for my poor English. I am Thai who lives in Thailand (a country in South East Asia). English is not my native language but Thai.