Create new FileStream out of a byte array

Question

I am attempting to create a new FileStream object from a byte array. I\'m sure that made no sense at all so I will try to explain in further detail below.

Tasks I am

Answer 1

Here is what I ended up doing. I realize that I did not give sufficient information in my question - and I apologize for that - but I do know the size of the file I need to decompress as I am using it earlier in my program. This buffer is referred to as "blen".

string fi = @"C:\Path To Compressed File";
    // Get the stream of the source file.
           //     using (FileStream inFile = fi.OpenRead())
                using (MemoryStream infile1 = new MemoryStream(File.ReadAllBytes(fi)))
                {

                    //Create the decompressed file.
                    string outfile = @"C:\Decompressed.exe";
                    {
                        using (GZipStream Decompress = new GZipStream(infile1,
                                CompressionMode.Decompress))
                        {
                            byte[] b = new byte[blen.Length];
                            Decompress.Read(b,0,b.Length);
                            File.WriteAllBytes(outfile, b);
                        }
                    }
                }