Maximum Open Folders — /O number

If this parameter is specified, Content Manager OnDemand limits the number of open folders to no more than the indicated value.

This parameter is used in combination with the Free Memory When Folder Closed parameter to cause folder information to be refreshed from the server each time that a folder is opened.

C:\<install dir>\arsgui.exe /O 1 /Q

where <install dir> is your OnDemand Client installation directory path.