I'm looking for an alternative right now. If I find one, I'll post it here for you.
This is annoying, though, because this plugin is REALLY nice and functions exactly how I want it to... except for the crashing my application pool and requiring a restart.
It's simply not feasible for me to direct traffic to my site when it won't load whilst using this plugin. I was considering going Pro, even though I don't need any of the pro features. But I can't use this.
To the developer, if you read this: I will give you unbridled access to my site and server control panel for you to investigate this.