We are currently using CSA to prevent writing to USB drives by using "@removable" and defining a file set for USB (directories matching @ removable).
This has caused a problem when using App-V-formerly SoftGrid to virtualize Adobe Eeader.
App-V uses a Q drive when virtualizing applications. Evidently Q is seen as belonging to @ removable.
In testing, I have changed the file set for USBs to be directories matching @removable but not Q:\**.
This allows Adobe Reader to work without interference, but also allows pdf documents to be written to USB drives.
Is there a way to directly modify @removable? so that it does not include specific drive letters?