Thanks jcl.

a) I can't reproduce the problem I was having, so I guess for now we'll call this another late night user error.

b) I have only 1 Zorro install on the test machine. If I "cd \" and then "\my program files (x86)\zorro\zorro" I do not get S. If I "cd \my program files (x86)\zorro" and then "zorro" I get S.

c) Can -d pass a value as well as the name? Or perhaps an entire #define string?

Thanks.