I am still having a problem with M98 and calling an external subroutine.  I have tried:

M98 (SLAVE.TAP) L10

As suggested by a member and it simply gives me "Cannot Load original File" when I try to load the g-code

If I try M98 PSLAVE.TAP L10 I get

Unknown word starting with s in Line number #3

Is it possible to call another g-code file using M98?  If so, how?

I have Art looking at it now

Be sure that you have the Tap file in the Mach3/Subroutines directory.

That should do it