I have a process that is overflowing the stack when run from within an IIS process, but works fine when run on its own. I suspect that on its own it gets the default 1MB stack, but within IIS gets somewhat less.
To avoid messing with the IIS worker processes I am using a sub-thread within the IIS process to allocate a bigger stack, but I suspect the stack size argument to Thread creation is being ignored as per the documentation (http://msdn.microsoft.com/en-us/library/ms149581.aspx)
When the stack overflows I can view the halted process in the debugger, but how do I find out how big a stack was actually allocated?