The StackSize property returns the initial amount of memory
that is committed to the stack for each thread created by the server.
By default, the stack size for each thread is set to 256K. Increasing
or decreasing the stack size will only affect new threads that are
created by the server, it will not affect those threads that have
already been created to manage active client sessions. It is
recommended that most applications use the default stack size.
You should not change this value unless you understand the impact
that it will have on your system and have thoroughly tested your
application. Increasing the initial commit size of the stack will
remove pages from the total system commit limit, and every page of
memory that is reserved for stack cannot be used for any other