search for .exe files when looking for commands to execute.
search for .exe files when looking for commands to execute.

Ignore-this: abfd73c1e0e215836217c0ff606f3569
This uses a slightly hokey trick to decide when it's running under
windows.  We could, of course, use franchise and an #ifdef, but that seems
like a bit of overkill, perhaps.

darcs-hash:20081201170738-72aca-76e4c6e0f0ff74fe6f9460a50dc0e1919f94ff52

shicks/shsh,shicks/shsh