>>Copying the files is not a good idea. You will get unpredicatable results.
>
>If it doesn't make sense. Any advice to solve these "UNPREDICTABLE RESULTS". How can we prevent this problem.
You solve the problem by properly installing the runtimes. You can use the Setup Wizard, Visual Studio Installer, or any third party installer.
Craig Berntson
MCSD, Microsoft .Net MVP, Grape City Community Influencer