1.Install Autodesk 2013 Windows Products

2.Use as Serial 666-69696969, 667-98989898, 400-45454545 066-66666666 .. 
  or anything matching those templates

3.Use the Product Key matching.
  The product Key can be find in a file called MID.txt
  in the root of the iso or in the unpacked exe file.
  It will look like this : Part Number: xxxE1-123456-123456...
  What you want is the xxxE1 number

 
  
4.Finish the installation & restart Autodesk Product

5.Before clicking on Activate
  You have 2 options :
   - a) Disable Your network Card, pull the network cable out or block with firewall
     (this is just to disable online serial check)
OR 
   - b) Click on Activate and it will tell you that your serial is wrong, simply click
     on close and click on activate again.

Choose option a or b.

6. Select I have an activation code from Autodesk
    
7.Once at the activation screen: 
  start XFORCE Keygen 32bits version or 64bits version
  
8.Click on Mem Patch (you should see successfully patched)

9.Copy the request code into the keygen and press generate

10.Now copy the activation code back to the activation screen and click Next
  You have a fully registered autodesk product



NB: Make sure you are running the Keygen as administrator and with UAC off on Windows7

