UnauthorizedAccessException on MemoryMappedFile in C# 4

Question

I wanted to play around with using a MemoryMappedFile to access an existing binary file. If this even at all possible or am I a crazy person?

The idea would be to ma

Answer 1

It is difficult to say what might be going wrong. Since there is no documentation on the MSDN website yet, your best bet is to install FILEMON from SysInternals, and see why that is happening.

Alternately, you can attach a native debugger (like WinDBG) to the process, and put a breakpoint on MapViewOfFile and other overloads. And then see why that call is failing.