Some Help with relative Shortcuts

Hello,
I´m trying to create some launchers/shortcuts to run cmd.exe from my stick in the local installation (with parameters).
So far I have tried with some variables but they haven´t work, like

%HomeDrive%\WINDOWS\system32\cmd.exe
%SystemDrive%\WINDOWS\system32\cmd.exe
%SystemRoot%\system32\cmd.exe
%SYSTEMDRIVE%\WINDOWS\system32\cmd.exe
Also with %ComSpec% and %Path% .
It doesn´t work neither if I leave "\WINDOWS\system32\cmd.exe" since it uses the drive of the usb.

Any help on how to make it work?

PD: Since I´m not an expert guy I´m using http://www.mystercrowley.com/portabilizer.php to make the launchers and what it´s actually not working is the target field.

Phil