There is a bug in the program which stops the crouch key from working. We have a patch to resolve this issue and it is posted at:

NSWMD-1.02.exe
http://www.valusoftsupport.com/ProductProfile.asp?pid=247

1. Save the file to your Desktop or other favorite location.

2. Double-click on the saved NSWMD-1.02.exe to install.

3. Follow the onscreen instructions.