VirusScan OnAccess Scan causes long loading times
 

Note: The VirusScan Virus scanner which does "OnAccess Scan" and was set for a maximum time interval of 45 sec for every object loaded will induce huge startup times for all scripts that load many objects.

Vizard will just show a white screen when the objects are being scanned and killing the process will keep winviz running in the background as a process that can not be killed and even prevents normal shutdown of the computer.

SOLUTION: Disable the 'VirusScan' on-access scan function.