How to Load WADS For Ultimate Doom Using the GZDoom Port

This might seem like a simple, or over-asked question, but I have never found any "tutorial" that actually helps me. I'm running Windows 7 64-bit, and I'm using the GZDoom port to run Doom Ultimate.

I've looked for a while on how to do this, but the stuff I get is of no help, or isn't explained at all, so if anyone here could give me simple steps on how to use a custom WAD, I would be very grateful.

You should be able to just drag and drop the wad file onto the executable. Failing that, try looking for ZDL. That lets you streamline the whole process and keep your wads in different folders without too much hassle.

Ah, thank you, it's working with ZDL

This applies to GZDoom too.
http://zdoom.org/wiki/Installation_and_execution_of_ZDoom