How can I simulate the Windows Key in Autohotkey

I'm also using an IBM Model M. I've mapped RCtrl to the RWin key using KeyTweak (in Windows 7 and XP).

You can get KeyTweak here: KeyTweak homepage

(you can edit directly your registry but it's much easier to use the above program).

With this approach you can continue to use Win+R, Win+Tab (in Windows 7), Win+E, etc. and your Autohotkey scripts will also detect your RCtrl keypresses as RWin.

It seems the windows key is not working as long as either ctrl or alt is pressed. The following script works for me:

<^LAlt::
KeyWait Alt
KeyWait Ctrl
Send {RWin}
return

<!LCtrl::
KeyWait Alt
KeyWait Ctrl
Send {RWin}
return

You can press the left Ctrl and left alt in any order, and when you release both, the windows key is generated. This way you will not be able to send combination like Windows-E. If you want that too, you can do something like:

<^<!e::
KeyWait Alt
KeyWait Ctrl
Send {RWin down}e{RWin up}
return

<^<!space::
KeyWait Alt
KeyWait Ctrl
Send {RWin}
return

Now press leftctrl-leftalt-e to genereate windows-e, and press leftctrl-leftalt-space for just the windows key.