Hello Thomas,
I find out what the cause is. My OS is Win2K Traditional Chinese version with Service Pack 2. The problem occurs whenever I set the region to English (US) from Control Panel/Region/General Tab/Region. The problem goes away whenever I set the region to Chinese Traditional Chinese. So it seems that the region must be set to the same as the Windows language version. Otherwise Bat! is confused by the file association. -- Regards, Anthony A computer program will always do what you tell it to do, but rarely what you want to do. -- Murphy's Law on Computing ________________________________________________________ Current version is 1.61 | "Using TBUDL" information: http://www.silverstones.com/thebat/TBUDLInfo.html