Our products will NOT run under Mac OSX Catalina or Big Sur!

Catalina and Big Sur are a 64 bit only system and our software is 32 bit. You can either not upgrade to these versions, or partition your hard drive into 2 operating systems, the new OS and your current one. Technical advice is recommended on this procedure.

Another solution is to run our program(s) on an older Mac or on any Windows computer (version 7,8, or 10). To do so first remove the license from the current computer by opening the program and going to Orientation -> Remove license from computer, and following the prompts.

To download the version you need free click on the link below:

Downloading SI3D Products

If you need your registration code reset (or you were not able to remove it from the original machine) send me your name, registration code(s) and corresponding program name(s) to:


If you get a message "…..can't be opened because it is from an unidentified developer" read the directions below:

If you're running OSX Mountain Lion or later on your Mac there's a feature you should know about called -- Gatekeeper. The primary function of Gatekeeper is to prevent malware like viruses and trojan horses from getting their hacking hooks into your Mac. Gatekeeper does this, by default, by only allowing apps that are downloaded from the Mac App Store or from "identified and trusted developers" be opened.

Since we do not sell through the App Store, it pops up. However, our software is completely safe. Instead of double-clicking on the app in question to open it, here's what you do:

  1. Ctrl+click or right click on the app and select Open from the contextual menu.

  2. This time you'll see a popup asking if you want to open it

  3. Click Open. 

The app will open and you'll be able to use it normally now. 

With the release of Mac OSX Sierra Apple introduced additional security measures. Therefore, please follow the instructions below to properly install your software.

First, download the software to your Downloads folder. Next, drag the .zip file TO THE APPICATIONS FOLDER. Open the .zip file by double clicking IN THE APPLICATIONS FOLDER. Run the installer from THE APPLICATIONS FOLDER. This should insure that your program works correctly. You can then click on the shortcut/alias icon on the desktop to run the program. You will have to register the first time you run the program with your registration code (serial number). NOTE: If you get the error message "Cannot find XML file" the program was not installed correctly. Please go back and make sure you followed the steps above.

License Issues:

This applies to ALL of the latest versions of ALL our programs.


ALWAYS, unregister your license BEFORE uninstalling the program. Failure to do so will result in the loss of your license.

DO NOT register your program while there is an external hard drive or flash drive connected to your computer. Registering (not installing) your program with an external drive attached could cause you to lose your license.

Running a malware detection program, anti virus program, cleaning program or defragmenting your hard drive could possibly cause your license to be lost. If you plan to do any of the previously mentioned actions, either make sure you unregister (not uninstall) your program first, or set your scanning software to omit scanning our files. (Contact us for techical specifications on where these files are located) Then continue with your operation. After your operation is complete, simply launch and re-register your Glass Horse Software.

Please Note: For computers with multiple accounts, the program will only run in the account in which it was registered! We do nave a version that allows multiple accounts. Contact us for more information.