1. Install using Acid Pro 5.0.exe 2. Use the keygen to generate a key. Startup Acid 5.0 to register 3. You also need to use the keygen to register the mpg/mp3p/ac3 export plugins. Go to File->Render As. Chose mp3/mpg/ac3 as the "Save as" type. Click "Custom" and click the registration or "buy now" link on the dialog. For MP3, choose to purchase from another computer, fill out the form with anything (make sure to check the agreement box at the bottom) and save it. Click next until you get a box to enter an activation code. Choose Mp3 Plug-In 2.0 and generate a key to put in the box. For MPG and AC3, choose to purchase by phone. Generate a key using "MC MPEG Plug-In 1.0" and "AC-3 Encoder 1.0" respectively and enter the code. When you're finished that, close Acid, run "Fix Registration.reg" and you're done.