This looks like an FMR.
If you have Autoplay enabled, then when windows enumerates the files in the background - the On Access Scanner would kick in. While this is not the same as a scan of all files and folders (since Autoplay would only enumerate the first four level of folders looking for media) this is as close as it gets to what you are asking.
Of course, if you were to access any of the files in the USB drive, the On Access scanner would be around anyways.
autoplay is disabled due to company security policy, therefore only the OAS works.
but the same company security policy says, "immediate scan before use "..
will be this solved in the next version ??on 11/11/09 6:31 AM
Sorry if I was not clear in my earlier post - what I meant was that you need to file an FMR - Feature Modification Request. Since this is a request (and not a defect that needs fixing) for functionality that is not currently in the product.
FMRs are reviewed by the Product Management but do not necessarily make it to the next release of the product. For details on how to go about submitting an FMR, please refer to KB60021