DOOM WADS  

If you're wondering what to do with a Doom WAD once you copy it into your 
DOOM or DOOM2 directory, here are a few tips.

There's usually a TXT file for you to read, and some even include a batch 
file for loading the WAD. If you're left clueless, the standard procedure 
is to type:    DOOMX -FILE WADNAME.WAD

* where DOOMX = your Doom executable command, either DOOM or DOOM2 
* where -FILE = would appear just as it is 
* where WADNAME.WAD = is the name of the WAD file you wish to load

i.e. To run the TOWNHOUS.WAD for Doom 2, type:  
DOOM2 -FILE TOWNHOUS.WAD.

This doesn't always work, they're just general guidelines. As with all WADS, 
updates, add-ons or patches make sure your original files are backed up. PC 
Gamer will not accept any responsibility for problems caused by these files.