When I enable Software Restrictive Policy, why is there a pop up error?

I am using Windows XP SP2, on a LUA/SuRun (Limited) account with SRP enabled.

In GPEDIT.MSC > … Software Restrictive Policy > Enforcement

If the setting are set to [x] All software files
[x] All users except local admin

When I right click on My Computer (and many other icons), there is an error that pops up
“rundll32.exe - Application Error”

Now if I change the SRP settings to [x] All software files except libraries(Such as DLLs)
Comodo works fine and no pop up error.

Does anyone know how I can have the SRP setting at [x] All software files, so that there is no “Rundll32.exe” popup error? (These are the maximum SRP settings which work fine without Comodo.)

Thank you in advance!

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