In the following way, you can control your .Net Framework with our shares.
Go to Windows Explorer and select C:\Windows\Microsoft.NET\Framework\.
In the Framework folder, open the latest version folder.
Open the accessibility .dll properties with the right mouse button and select the "Details" tab.
Here you can find your currently installed .Net Framework version.
Since the EPLAN platform is available as a 64-bit version, please note the following special features:
To use Access databases for project management and the dictionary, the Microsoft operating system must be installed in the 64-bit version. Microsoft Office applications that may be installed must also be in the 64-bit version throughout.
If you have installed the Microsoft Office applications in the 32-bit version, you must use SQL Server databases for project management and the dictionary.