Accessing Memory Mapped File from Web API

Hi all,

I need to access a memory mapped file from one of my routes in my Web API. Using the normal IIS worker settings I have no luck and my service always returns "File not found". I tried to add the prefix "Global/" but still no luck.

After reading many hours on the web I learned that I need to change the Identity of the IIS worker. So, just for testing purposes I changed the worker identity to the Administrator account. I uploaded a picture here:

http://imgur.com/MrA3byz

But still no luck. Does anyone here know how to configure IIS correctly?

Here is how I access the Memory Mapped File using c#:

string Message = "";

try
{
    string MMF_In_Name = "Global\\MMF_Name";
    MemoryMappedFile MMF_In = MemoryMappedFile.OpenExisting(MMF_In_Name);

    Messages.Add("Connected to MMF");
}
catch (Exception ex)
{
    Messages.Add(ex.Message);
}

I have double checked the name of the memory mapped file and it's correct. A command line tool run as Administrator works as expected.

I'm using IIS 8.5 on Windows Server 2012.

Thanks,

Christian