Not that it helps any, since I'm getting a similar error message from Windows
Defender every time I restart, but... the InstallShield Update service seems
to be attached to Corel, Ulead, and Intervideo products (all Corel companies
now) I have installed on my system. I know it used to check for product
updates, but over the last few years it seemed to be coming up with more
cross-promotional ads for products and upgrades, than acutal updates to the
software it was installed with.
I HATE this software, but created holy hell when I tried to uninstall it.
Beware. The information on InstallShield's site was NOT current. When I
tried to modify the instructions given for XP to work on my new Vista system,
I ended up being unable to install any new programs... which resulted in a
complete reinstall of Vista from the ground up.
If anyone comes across credible information on disabling/removing
InstallShield Update Service (aka ISUSPM.exe) in Windows Vista, please let me
know.