running a program on the client side

Hi,

I am trying to design a protocol, so I make the necessary inpput files which should be passed to the main command line program, on windows xp.

Afterwards I add the module "run program on client" and as parameters

"\$(myprogram_exe)" "\$(input_file)"

I check, using global display, that the are correctly defined, but when I run the protocol I get the error

'''\$' is not recognized as an internal or external command,
operable program or batch file.