ProteinInsight 2.2 was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The following version: 2.2 is the most frequently downloaded one by the program users. The actual developer of the free program is Chan-yong Park. ProteinInsight.exe is the default file name to indicate this program's installer. The program relates to Development Tools.
From the developer:
Protein Insight is a outstanding software that allows you to visualize protein structures. A the Microsoft Direct3D and the Microsoft .net framework based protein structure visualization platform. Because Protein Insight completely utilize a vertex shader and a pixel shader, Protein Insight has very fast rendering speed although it has high quality rendering. Protein Insight is also highly extensible with a plug-ins.
You may want to check out more software, such as Advantage TDataSet Descendant for Delphi/C++Builder, conaito PPT2Flash SDK or SpinnerDemo, which might be similar to ProteinInsight.