First thing's first: don't use v0.5. It contains a bug which breaks some parameters (autorun and application). I've compiled a new version with just the fix of this bug. It's available in the first post. <span style='font-size:9pt;line-height:100%'> </span>Please update to THAT version, as 0.5 well... sucks. <span style='font-size:12pt;line-height:100%'> You can download CDswitch 0.5rv1 here (180k).</span> Next, 0.6a is done: <span style='font-size:9pt;line-height:100%'> </span>Well, this release is a huge step forward in stability. Featurewise it also has some new stuff. First, the "/r" parameter can now be extended with the "/w" parameter. When both are used, cdswitch will wait (hidden) on the launched app to finish. This is useful for single-app discs. Say, you have Office on only one disc. You now only need one entry anymore (I'll give a quick RunOnceEx example): REG ADD %KEY%30 /VE /D "Application whatever" /f REG ADD %KEY%30 /V 1 /D "%systemdrive%\install\Setup.exe -s" /f REG ADD %KEY%35 /VE /D "Office 2003" /f REG ADD %KEY%35 /V 1 /D "cdswitch OFFICE_2003 %CDROM% /r:"%CDROM%\SETUP.EXE TRANSFORM=Unattended.MST /QB-" /w" /f REG ADD %KEY%40 /VE /D "Shutdown and reboot, or insert next disc, or switch back" /f REG ADD %KEY%40 /V 1 /D "blah!" /f Also, you can navigate with the "/p", this has now been improved. If your picture is one dir back, you can navigate to it: cdswitch blah! d: /p:..\groovy.jpg Finally, silent mode can use the "variations" to disc-supplying: So instead of "cdswitch /s /o d:" you can now use: cdswitch /s /o d or when you want to eject the first drive: cdswitch /s /o 1 Same applies for the "/s /c"mode. <span style='font-size:12pt;line-height:100%'> You can download CDswitch 0.6a here (179k).</span>