From General CADD Products:
General CADD Pro or GCP as users are calling it is a very powerful 2D computer assisted design & drafting program (32 bit accuracy) which embodies the features of generic CADD (CADD6), the very popular and well known DOS based CADD program which reportedly has over 350,000 users world wide. Many Generic CADD users are still maintaining an older DOS based computer just to run their favorite CADD program.
General CADD's primary goal is to provide these users with a natural feeling and nearly painless upgrade path to Windows. The main focus of the GCP development team has been to recreate as closely as possible the 2 letter command structure, ease of learning and operation, but this time, in the MS Windows operating environment. GCD, DWG, DXF, CMP, MCR, FNT, VCD, VCS, SHX, PAT, PAT, HCH, and HAT file compatibility. Version 4.1.26 may include unspecified updates, enhancements, or bug fixes.