What are these numbers in an assembly or file in a vdproj file?

Question

{**9F6F8455-1EF1-4B85-886A-4223BCC8E7F7**}:**_03AB8A75D149B335EA5B97C256BF5342**"
        {
        "AssemblyRegister" = "3:1"
        "AssemblyIsInGAC" = "11:FALSE"
        "AssemblyAsmDisplayName" = "8:UILibrary, Version=2.0.0.0, Culture=neutral, processorArchitecture=x86"
            "ScatterAssemblies"
            {
                "**_03AB8A75D149B335EA5B97C256BF5342**"
                {
                "Name" = "8:UILibrary.DLL"
                "Attributes" = "3:512"
                }
            }
        "SourcePath" = "8:UILibrary.DLL"
        "TargetName" = "8:"
        "Tag" = "8:"
        "Folder" = "8:**_03B2F8A0E94043BBA08EC194BFA35C4A**"
        "Condition" = "8:"
        "Transitive" = "11:FALSE"
        "Vital" = "11:TRUE"
        "ReadOnly" = "11:FALSE"
        "Hidden" = "11:FALSE"
        "System" = "11:FALSE"
        "Permanent" = "11:FALSE"
        "SharedLegacy" = "11:FALSE"
        "PackageAs" = "3:1"
        "Register" = "3:1"
        "Exclude" = "11:TRUE"
        "IsDependency" = "11:TRUE"
        "IsolateTo" = "8:"
        }

Those numbers inside the **, can anyone please tell me what they are and what they are for? thanks

Answer 1

These are GUIDs or in other words Globally Unique Identifiers. You'll find all the information you need if you click the link that will transfer you to Wikipedia article about 'em.

BTW: Microsoft's implementation is called UUID or Universally Unique Identifier. Arrogant? Maybe.