PDSYMS DXF Symbols Library
PDSYMS v2.0 offers an add-on library of architectural and interior design symbols in DXF format for all CADD packages across operating systems and platforms.
PenDean Inc. 
PDSYMS DWG Symbols Library
PDSYMS v2.0 is a cross-platform and operating system-compatible DWG-FORMAT Symbols Library Add-on designed for all CADD packages, specifically for architectural and interior design purposes.
DEANLT for AutoCAD LT
This software provides a complete replacement menu for AutoCAD LT97 through LT2006.
DMENU for AutoCAD LT
This software is a comprehensive menu replacement for AutoCAD LT97 through LT2006, with a focus on 2D architectural and interior design.
DSYMS for AutoCAD LT
This software is an Add-on for AutoCAD versions LT97 through LT2006, designed for the 2D architectural and interior disciplines. It offers a comprehensive Pulldown Menu symbols library.