Info: 16GB SanDisk thumb drive with all U3 features removed RoboForm2Go (portable version of Roboform) installed to root directory LupoPenSuite installed to \lupo directory Portableapps installed to \portableapps autorun.inf and portableapps.bat are present in the root directory Situation: On the HP desktop computer. In Vista Home premium, I insert the thumb drive and it uses autorun, launches the normal dialog window with "Launch portableapps.bat" as first (default) option. I click OK and the file runs and every thing works as expected. When I reboot to Vista the same thing happens. All well and good. Reboot to XP Pro. Insert the thumb drive and everything works as above. Reboot with the drive still plugged in and and explorer opens with the \lupo directory displayed. Remove the drive and go to the laptop with XP MCE running, plug it in and nothing happens. No launch dialog box. No explorer window. Nothing. The autorun and batch files are below. Can somebody please tell me what drives these different behaviors and how to get the same action as in Vista on the desktop to occur in XP Pro and XP MCE. I renamed the autorun in the \lupo folder to eliminate it as the cause. Thanks, Don Autorun.inf file: [AutoRun] open=Portableapps.bat action=Launch portableapps.bat shell\cruzer16_2=Launch portableapps.bat shell\cruzer16_2\command=Portableapps.bat icon=cmd.exe label=cruzer16_2 portableapps.bat file: echo off \lupo\start.exe \portableapps\startportableapps.exe portableroboform.exe exit --------------------------------------------------------------- Please remember to trim your replies (including this sentence and everything below it) and adjust the subject line as necessary. To subscribe, unsubscribe or modify your email settings: //www.freelists.org/webpage/pctechtalk OR To subscribe to the mailing list, send an email to pctechtalk-request@xxxxxxxxxxxxx with "subscribe" in the Subject. To unsubscribe send email to pctechtalk-request@xxxxxxxxxxxxx with "unsubscribe" in the Subject. To access our Archives: http://groups.yahoo.com/group/PCTechTalk/messages/ //www.freelists.org/archives/pctechtalk/ To contact only the PCTT Mod Squad, write to: pctechtalk-moderators@xxxxxxxxxxxxx To join our separate PCTableTalk off-topic group, send a blank email to: pctabletalk+subscribe@xxxxxxxxxxxxxxxx ---------------------------------------------------------------