Warnings about rundll32.exe trying to execute non-executable files

Every so often, Comodo Firewall keeps popping up with warnings about rundll32.exe trying to “execute” various files, most of which are not executables, like *.gif and *.png and *.txt files. Using process explorer, I’ve found that rundll32.exe is actually running with the following commandline: “rundll32.exe aepdu.dll,AePduRunUpdate”. aepdu.dll is apparently part of windows, involved with something called “Program Compatibility Data Updater”.

So far, the only way I’ve found to stop it from asking about every file that is being accessed is by putting Comodo Firewall into installation mode. Is there some other way to let Comodo know that nothing fishy is going on?

I am running Comodo 3.13.121240.574 under Windows 7 Home Premium 32bit.

Read this.