Dear User, The SciTech GLDirect product has been discontinued, and the source code is in the process of being submitted to the Open Source Mesa project. There will no longer be any future versions of GLDirect available from SciTech. If you would like to continue to use the latest 5.0.2 release on your computer, please use the following free registration code to unlock the product: Name: Free Code Code: 1C10-0485-A489-E2 Please enter the code exactly as shown above (including case).