Troubleshooting:

Microsoft 1.56 Users

description: A .pdb module was missing in the software.

Symptoms: An error message:

Linking...
CVPACK : fatal error CK1024: C:\FRANCA\FRANCAM1.OBJ cannot use program
database .\FRANCAM1.PDB : signatures do not match

Solution:

You must download a new francam1.obj and the francam1.pdb files to your directory.