Solution
This issue happens when some dlls are not correctly registered in the installation process. To solve this issue, please follow the steps below.
- Open the command prompt(CMD) as an administrator. You can do this by searching on the windows menu "cmd" and select "Run as administrator".

- Run the following commands:
- cd C:\Program Files\National Instruments\DIAdem 2020
- where regsvr32.exe
- If the Response is “C:\Windows\System32\regsvr32.exe” then execute the following commands.
- "%SYSTEMROOT%\System32\regsvr32.exe" "C:\Program Files\National Instruments\DIAdem 2020\DataFinder_GUI.dll"
- "%SYSTEMROOT%\System32\regsvr32.exe" "C:\Program Files\National Instruments\DIAdem 2020\DataStoreElements_GUI.dll"