RXVT comes up no matter what. If I start it with the above command, I get:
Microsoft (R) Windows 98
(C)Copyright Microsoft Corp 1981-1999.
C:\\cygwin\\bin> [cursor]
Then, if I type something and hit enter, there is a slight pause, and it's echoed back to the console on the next line. Nothing else happens.
If I just invoke rxvt on it's own, then type the following at the $ prompt:
/cygdrive/c/command.com
Then I get the following error message:
SH caused an invalid page fault in module KERNEL32.DLL at 0167:bff7d762. (along with some registers)
and it does the exact same thing as if I'd invoked the whole kit with the command line.
Oh, and if I exit out, I get a hung winoldap process.