Because of my Cygwin-love, I’ve found myself using the Command Prompt Here context-menu item, and then immediately entering tcsh and doing what needs to be done. I can’, then, double Ctrl-D my way out of the window since cmd has no clue what Ctrl-D is. It’s annoying, but it means I have to take the extra two seconds to type ‘exit’. So, throwing any concept of cost/benefit out the window [though, those four seconds probably add up to like... 30 minutes of lost productivity a year], I investigated how to do the same thing for Cygwin.

Somebody figured this out already, so all that was left was for me to have it run tcsh instead of bash, and I was all set. This was painfully simple. Here’s the registry script I’m using:

REGEDIT4
[HKEY_CLASSES_ROOT\Directory\shell\TcshHere]
@="&Cygwin Prompt Here"

[HKEY_CLASSES_ROOT\Directory\shell\TcshHere\command]
@="c:\cygwin\bin\bash.exe --login -c \"cd '%1' ; exec /bin/tcsh\""

[HKEY_CLASSES_ROOT\Drive\shell\TcshHere]
@="&Cygwin Prompt Here"

[HKEY_CLASSES_ROOT\Drive\shell\TcshHere\command]
@="c:\cygwin\bin\bash.exe --login -c \"cd '%1' ; exec /bin/tcsh\""