p139xdlg.dll is another random DLL file that you see pop up just when you’ve gotten the application you are trying to run to open. But wait, are you confused because this error file seems to have no rhyme or reason, and it appears out of the blue regardless of which application you are running? Don’t be.
These error messages are very common and no reason to be alarmed but over time they tear down the interworking of the machines ability to execute. In other words, the same way that you do a spring cleaning, as your computer ages you need to clean it’s registry whenever random DLL files occur.
ZookaWare PC Cleaner is the leading name in registry cleaning. Visit their website right away and get an early jump on your spring cleaning.