This issue only happens after you uninstalled the Intel® C++ Compiler Integration with Visual Studio*.

When opening a project that uses the Intel® C++ Project System with Visual Studio*, you will get this error “The application for project C:\test\test.icproj is not installed. Make sure the application for the project type (.icproj) is installed.”:

To solve this problem, either install the Intel® C++ Compiler Integration with Visual Studio, or do the following to update the solution to use the Microsoft Visual C++* project system (insert your solution file for “test.sln” in the following example):

1. Open a command window.

2. Add the following directory to the "path" environment variable:
   • IA32 system - C:\Program Files\Common Files\Intel\Shared Files\ia32\Bin
   • Intel® 64 system - C:\Program Files (x86)\Common Files\Intel\Shared Files\ia32\Bin

3. Run the following cmd:

   >> ICProjConvert100.exe test.sln /VC
   or
   >> ICProjConvert100.exe test.vcproj /VC

4. Now you should be able to open the test.sln with Visual Studio.

This applies to:

Intel® C++ Compiler for Windows*