I don\'t know what\'s wrong with my machine, but it\'s a while that I\'m getting the following strange error from ASP.NET (for all my applications).
Compilat
If you are still struggling to solve this issue, even after all options, then try to find application which is running and taking huge memory.
In my case it was an application which was having more than 100 instances running due to some error and that was taking at least 20 MB per application so around 2 GB.
After I killed the few applications and memory was released my site was back online.