IIS 7 and Above
Trouble with Linkpoint API in IIS7
Re: Trouble with Linkpoint API in IIS7
Apr 03, 2009 11:21 AM|Rovastar|LINK
Does the failed Request tracing give you any clues?
The above posted had a heap corruption problem so I suspect the app is doing something wrong and mashing up the heap. If this is the case then the problem is firmly with the app and I don't know what to suggest other than approach the authors of the software.
Here is another link on Debugging heap corruption but if you are not the dev there is not much you can do,.