Read registry binary

So today i wanted to work with registry but i'm having a problem.

With the code here:

dim binary as byte = My.Computer.Registry.GetValue("REGISTRY PATH", "keyhere", Nothing)

I can read anything thats a string, But if i try reading a REG_BINARY it just give me an error:

"Conversion from type 'Byte()' to type 'Byte' is not valid."

My question is:

How can i read a registry thats binary and print it in a message box.