PerUser configuration parameter (ACS)
Syntax (prefix with dash in a Generation Settings Scheme):
PerUser=0 or 1
The PerUser configuration parameter specifies whether the ACS ComDir folder is created in the Documents and Settings\All Users folder or the Documents and Settings\<user> folder – 0 is All Users, 1 is <user>.
ACS is installed to create the ComDir folders in the Documents and Settings\<user> folder, that is PerUser=1.
* 
If you have not specifically changed PerUser to 0 and you use the ResetAllParams configuration parameter, you must reset PerUser to 1, else ACS will not be able to open models they have previously worked with.
Examples
PerUser=0
PerUser=1