The loader is in:
Tcad1_4_42K.mnl
This file should be in:
C:\Tcad1_4_42k\Support\
In your case you would find it in:
F:\Tcad1_4_42k\Support\
Edit the code in line 21 by changing the drive letter C: to F: as follows:
(SETQ TCADPATH "F:/TCAD1_4_42K")
In other words, simply change the C to an F
This should start the loader, if not tell us what happened on the forum here and email me to tell me that you have a post that needs an answer. Good luck.
paul@spbrooks.com