To fix this, try to delete the temporary files and then check if RunDLL error at startup still occurs. Press Windows key + R on your keyboard to open RUN dialog box.

Go to Start > Run, then enter msconfig to load the System Configuration Utility. When it shows up, choose the Selective Startup option and enable only one of its options.

A DLL file in Windows carries all the code that one program can use to function correctly. Like any other software, the functions in the DLL file needs to be compatible with Windows if they are ...