A 32-bit program throws an exception of System.OutOfMemoryException

[Ersoga]

In the EncodingType class, an OutOfMemoryException is raised when a large FileStream is read.
throw by the line:

I made the following modifications:
add function:

Modify the GetType function：

[haplokuon]

I see why that method might fail in a 32 bit system with very big files, what I do not understand is why is giving you problems since that is old code not used anymore, I should have deleted it.