How to Run Proxifier in 64-bit Engine? If your PC or laptop is running in 64-bit system, please make the necessary changes to the Proxification Engine as follows: 1. Go to Profile} Advanced} Proxification Engine. 2. Click the 64-bit subsystem and create this setup: Intercept network calls at: Winsock Library Hook Type: Function Prologue Copy (can also be Module) 3. Hit OK then start surfing the internet using your web browsers. Note: *Please don't exit the Proxifier when using the internet. Also, don't open lots of tabs while browsing, keep it up to 5 tabs only for it will slow your computer's response time. If your computer is slowing down, just clear the Proxifier GUI or close it and run again. *It will be better if you use this for downloading or streaming only because the speed when surfing websites is slower than normal; but the speed for downloading is faster.