Some years ago I published the reg string here to start RGui in a selected Windows directory via right key click without keeping a cmd window open. That string no longer works in Vista/Windows 7. Below is the alternative. It assumes that rgui is on your path, or that you have Gabor's rbatch installed and on you path. http://batchfiles.googlecode.com If you must use an explicit path to RGui, use the short path name, or find out how to escape double quotes in registry/shell. (\ or \\ or """ does not work). Dieter Windows Registry Editor Version 5.00 [HKEY_CLASSES_ROOT\Folder\shell\RGui] @="R Gui here" [HKEY_CLASSES_ROOT\Folder\shell\RGui\command] @="cmd.exe /c \"pushd %L &&start rgui --no-restore --no-save\"" -- View this message in context: http://n4.nabble.com/Windows-Shell-R-Gui-Here-tp1013783p1013783.html Sent from the R help mailing list archive at Nabble.com.