Hi there,
Sorry for the late reply. The dtrace shows that it searches for the files only in the user profile folder and I don't know any way of modifying the path values.
As the collections cleanup takes place once a day, I would consider creating a small .cmd script that should perform the cleanup. It could look like this:
del /q /f /s <drive_letter:\path_to_vault>\*.archdvs
The script could be set in a task that runs every hour (or every 2 hours).
To create a task that runs every hour, you can check the following link (if needed):
http://www.ipconfig.co.nz/blog/post.cfm/windows-run-a-scheduled-task-hourly
Hope this helps.
Olivian