Then after installation.
1. Start FSX, create a flight plan.
2. Start PFE & PF2000 - Compile that flight plan. Click 'Connect to FS'.
3. Click 'Fly Now' in FSX.
First of all, is this the correct order? And secondly, the problem is that the PFE window doesn't always show up when the FSX cockpit loads. Isn't it supposed to load every single time I start FSX?