Occurs when using regsvr32 catplus.dll . catplus.dll is typically not a COM-registerable DLL. It does not export DllRegisterServer or DllUnregisterServer functions. Attempting to register it manually is pointless and will generate this error.
Microsoft frequently releases patches that fix known DLL conflicts and restore missing system components. Open (Windows Key + I). Go to Windows Update . Click Check for updates and install any available packages. Restart your PC. 4. Register the DLL File Manually catplus.dll
The "catplus.dll" file has been associated with several concerns: Occurs when using regsvr32 catplus