1. If you already have Xpadder, you can skip to Step 4.
2. Make a folder called "Xpadder" somewhere on your computer.
3. Download Xpadder[docs.google.com] and save it in that folder.
4. Inside the Xpadder folder, make a folder called "Profiles".
5. Download: XBOX 360 Controller[docs.google.com] and Save it in the Profiles folder.
6. Download: Killing Floor profile[docs.google.com] and Save it in the Profiles folder.
7. Turn on/plug in your Xbox 360 controller.
8. Run the Xpadder program.
9. Go through the next instructions, mainly by clicking the "Start" option.
10. When asked about a location, choose either option.
11. Once the program has loaded, click the controller button (see fig.1) and click Open.

• Make sure Xpadder is running
  
• Xpadder should open the last profiles you used so you don't need to set it up again.
  
  • If it doesn't, you can use Steps 5 & 6 to re-select it.

Click image to enlarge