DesignCAD includes DesignCAD (2D CAD software) and DesignCAD 3D MAX (Both 2D and 3D CAD software).  We offer free assistance troubleshooting unexpected software errors or behavior to owners of version 25, 24, 23, and 22.

Why aren’t older versions supported?  The system requirements for older software are out of date, so the working environment cannot be duplicated by our technical support team.  In most cases, issues are resolved by upgrading, and you are strongly encouraged to do so.  To request an upgrade quote, send an email to


Installation & Activation Help

Watch this YouTube video on how to install your software:

If you are still having trouble, and have confirmed your system meets the minimum system requirements, email with your product name, version, and any other information that might help our support staff diagnose the problem, and we will respond during business hours.


Updates and Patches

Download the latest updates to your DesignCAD software

DesignCAD 3D Max v25.2 Update (32-bit)

DesignCAD 3D Max v25.2 Update (64-bit)

DesignCAD v25.2 Update (32-bit)

DesignCAD v25.2 Update (64-bit)

DesignCAD 3D Max 24.1 Update

DeignCAD (2D) 24.1 Update

DesignCAD 3D Max 23.1

DesignCAD 3D Max 22.1

DesignCAD 3D Max 21.2

DesignCAD 3D Max 21.1

DesignCAD 21.2

DesignCAD 22.1

DesignCAD 21.1

DesignCAD 3D Max 20.1

DesignCAD 3D Max 19.1

DesignCAD Express 18.2

DesignCAD 3D Max 18.2

DesignCAD 3D Max 18.1 Release Notes

DesignCAD 3D Max 18.1

DesignCAD 3D Max 17.2

DesignCAD 3D Max 17.1

DesignCAD 3D Max 17.1 Release Notes RTF

DesignCAD 17.2

DesignCAD 17.1

DesignCAD 16.3

DesignCAD 16.2

DesignCAD 16.1

Download the update for the AllCAD 2D compatible with DesignCAD 16

Download the update for AllCAD 2D3D compatible with DesignCAD 16


DesignCAD Community Forums

Reach out to the community of DesignCAD users and our development team online through the community forums.  Search topics to find answers to questions, or post questions for help.  Visit DesignCAD Forums


Find Answers in the Reference Manual

A complete reference manual is delivered with DesignCAD versions 25 -21 on PDF so it’s easily searchable.  To access the Version 23 or 22 Reference Manual, click on the Windows Start Menu, select All Programs, then open the DesignCAD 3D Max 23 or 22 folder, and select DesignCAD 3D Max 23 or 22 Reference Manual (or DesignCAD 23 or 22 -> DesignCAD 23 or 22 Reference Manual for the 2D version). For version 21, use Windows Explorer to browse to the folder where DesignCAD is installed, and look for dcad21.pdf. For documentation on older versions of DesignCAD, click on the links below.

Download DesignCAD 20 Reference Manual PDF

Download DesignCAD 19 Reference Manual PDF

Download DesignCAD 18 Reference Manual PDF

Download DesignCAD 17 Reference Manual PDF

Download DesignCAD 16 Reference Manual PDF

Email Support

Our dedicated staff are available to assist you.  Please prepare and email with the following information.

  • Your product name, version number, and operating system
  • Description of the problem including any error message you might be receiving
  • Any other information that might help us diagnose the problem

Send it to We will respond during business hours. 

Remember email support is to help troubleshoot unexpected software errors or behavior.  Please refer to the next section for software training.


Take a Training Course

Order the DesignCAD Training CD, an audio-visual tutorial with over 4 ½ hours of instruction to help you get the most out of DesignCAD.