Yes, I use the mapping/unmapping code in another program for doing network backups using NT Backup. I want to modify that program so that I get the total disk space used by each user and the grand total so that I know who to tell to cleanup before the backup job requires a 2nd tape. It looks like find must keep something in memory, maybe a hash that it relates to X: which interferes when X: is moved. This will make a nice program when it works!! Thanks..