Question: how to play qcp files on windows?
Answer: Step 1: Add QCP files.
Step2:Set output audio format. Click the "Profile" drop-down button to select your desired audio format like MP3, WAV, WMA, M4A, AC3 and etc from the "General Audio" category.
Step 3: Increase output Audio Volume (Optional) ... 
Step 4: Convert QCP files.