Two parameters help you manage the size and location of Project Professional 2007’s Active Cache (HKEY_CURRENT_USER\Software\Microsoft\Office\12.0\MS Project\Settings):
These two parameters are also accessible via Project Pro’s menu: Tools -> Local Project Cache -> Cache Settings
It is thus recommended to control via a Group Policy Object (GPO) these two parameters specially when Proj Pro. is deployed in a Terminal Server/Citrix environment.
For more information on how to use GPO with Office 2007 please refer to the following documents:
¾ Enforce settings by using Group Policy in the 2007 Office system
¾ 2007 Office System Administrative Templates (ADM)
Please note 200MB is the minimum recommendation for the Cache Size Limit.