I use the envisalink v4 with my Honeywell vista 128 panel and use this Vista App which also requires node server.
[RELEASE] Honeywell / Ademco Vista 20P Integration
Your window sensors are more then likely in series in one to three zones, so you will only be able to monitor the zones. I did replacement windows which destroyed my hardwiring so I ended up with Honeywell wireless battery powered sensors which gives me integration per window.
Then I use WebCore to control my Thermostats, turning off AC/heat when windows are open, and more…