How to: Retrieve the .NET Framework Version
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How to: Retrieve the .NET Framework Version (C++/CLI)

The following code example demonstrates how to determine the version of the currently installed .NET Framework with the Version property, which is a pointer to a Version object that contains the version information.

// dotnet_ver.cpp
// compile with: /clr
using namespace System;
int main() 
   Version^ version = Environment::Version;
   if (version)
      int build = version->Build;
      int major = version->Major;
      int minor = version->Minor;
      int revision = Environment::Version->Revision;
      Console::Write(".NET Framework version: ");
            build, major, minor, revision);
   return 0;
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