I try to start hm2 but suddenly there is a message saying
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HoldemManager.exe - .NET Framework Initialization Error
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To run this application, you first must install one of the following versions of the .NET Framework:
v4.0
Contact your application publisher for instructions about obtaining the appropriate version of the .NET Framework.
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OK
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I tried to install .net framework v4.0 but it didnt work because i have already installed v4.0 or a later edition