Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.

C:\_\tmp>tcsh
'tcsh' is not recognized as an internal or external command,
operable program or batch file.

C:\_\tmp>perl -wE "`tcsh`"
'tcsh' is not recognized as an internal or external command,
operable program or batch file.

C:\_\tmp>