Hi, Using; TCC 11.00.26 Windows XP [Version 5.1.2600] TCC Build 26 Windows XP Build 2600 Service Pack 3 When I right-click to create a new tab window, I get a context menu, with the options New Tab, Run, Attach Tabs I select run, and am presented with the Run Program dialogue. For command line, I type notepad.exe I choose Start in a New Tab, and click Ok. Works like a charm. So, I close said tab by clicking on the X in the newly created tab. I try to do the same thing from the command line. I type; Code: start "Test" /tab notepad.exe or Code: start /tab notepad.exe Notepad is started "like" a tab window, but with no tab or tab label created, as it did when using the dialog as above. The only way to switch to Notepad is to alt-tab, or click on Notepad in the Windows Taskbar. What am I missing to duplicate this from the command line? Thanks from Joe.