If this message appears during the installation process of AV MIDI Converter, it means that your computer doesn’t have Microsoft .Net Framework 4.0, which is a requirement for AV MIDI Converter to work properly. Please install the framework into your computer.
About the framework: Microsoft .NET Framework is a software framework that provides the .NET Framework run time and associated files that are required to run most client applications on Microsoft Windows.
To download MS .NET Framework 4.0 Client Profile, click on either links below:
Download from Microsoft website | Download from mirror site
If you are running a XP 64 bits or Windows 2003 you may also need to install the Windows Imaging Component as well. To download the component, please choose the pack that is appropriate for your system:
Download Windows Imaging Component 32 bits | 64 bits