Unable to find a version of the runtime to run this application

I have created a Desktop application in visual studio 2.0.

One user installed Microsoft .NET Framework 4 but w开发者_StackOverflow中文版hen the application installing he get this message :.NET Framework Initialization Erroe

Unable to find a version of the runtime to run this application" What is this problem ??

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The user needs to install also .NET Redistributables for 2.0.

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open your project right click on the solution, select Properties.

under "Application" there's a field: Target framework

set it to framework 4