Mike what about changing it slightly, create Cache.dat on the removable disk as you currently do, create a batch file on the laptop which copies the info FROM the removable TO the laptop. then run Cache fromt he laptop pointing to the laptop.
you coulld do a BACKUP (allbeit full backup) onto the removable disk to send it back to the master system the alternative is to have a restore type process that reads from the removable to the laptop prio to usage. you could always call the programme as part of the startup and validate if its been done once today. it may not be the perfect solution, but on the basis you ahve problems with corruption, then this may be a solution kevin
