I have a family history app i'm running on my usb stick soas to have portability & update capabilities while visiting relatives. To have it work on diff PCs I also use a mgr to allow me to have the drive letter the same, even on other PCs. My problem is trying to install this mgr, which has to be residing & run from the hard drive, from the usb autorun.inf file. I know I could do this manually, but I also send this stick to family members far away, & most of them are quite old & have difficulty doing email, so I need to keep it as simple as it can be done. I have tried diff commands, using a bat file inside the autorun, but no joy. Any help anyone offers would be appreciated.