XP SP3 --- When I Uninstalled V4 ESS to Re-load V3 ESS I tried Control panel Uninstall instead of the Start/Programs/ESET route that always worked. Blue Screen Windows auto-shutdown, etc led to manual Deletes and Re-Install of V3 ESS. Today attempted Uninstall of V3 ESS to load JUST V4 AV. Atempts to Install V4 AV netted "Network Error Attempting to read C:\Windows\Installer\eav_nt32_enu.msi string. I probably Deleted "callmsi.exe/egui" in the Registry Trying to wipe out remnants of egui that STILL showed in a pop-up after "Regular" Explorer and Registry Deletes. Per ESET instructions Copying (e.g., eav_nt32_enu.msi) to the Installer folder and THEN trying to Delete ESET produces (Edited) "Looking for callmsi.exe". I can't Un-Install Correctly OR Install anything to do with ESET. Any suggestions?