The ELM transmitter version 4.0 works only if the .NET Framework 4.5 is installed on the device. In the Windows versions 8.0 + 8.1 this Framework is already installed by default. In the versions "Windows Vista" and "Windows 7" it must be installed.
The download link can be found here:
http://www.microsoft.com/en-US/download/details.aspx?id=30653
INFO:
For versions of Windows XP and older the .NET Framework 4.5 is not compatible.
NOTE:
If the following error when testing the interoperability or the Ping screen appears, this indicates the lack of .NET Framwork:
