MY DLL PROBLEMS SOLVED ???

So, I downloaded Dego, an action/rpg game made with the Custom engine.
When I tried to play the game I got the error message "can't open game, d3dx9_31.dll not on your computer."

Well, I had this error several times in the past, just a different dll#. So as usual, I went to the internet hunting for that dll file. Every site willing to give me that dll, also wanted to download a CRAP load of other software.
I finally called Dell tech support as I purchased a new XPS 8700 back in Feb.2014 and still had a support contract.

Gave the tech permission to work remotely on my computer. He finally downloaded the correct dll file but when opening the game Dego, he kept getting the same error, and of course the game refused to work :( I also got this error on many of the RM2K games.
After working on my computer for some time he finally found out that I have a current version of Directx that runs the games, but it needed a file from an older version of Directx. Every so often you might get a message that your Directx version is obsolete and you will download the current version.

Well, the game now works, yippeeeeee for me :).

Mostly, I made this post because I have Windows 8.1 and after having trouble with a few games, I was told that some games just don't work with Windows 8.1 Now I find it may not be Windows but the Directx program :)

Just thought I would post this in hopes that someone who also has trouble running the older games and my problem may be your problem and it can be fixed :)