Guid::NewGuid Method
.NET Framework 4.5
Initializes a new instance of the Guid structure.
Namespace: System
Assembly: mscorlib (in mscorlib.dll)
This is a convenient static method that you can call to get a new Guid.
The chance that the value of the new Guid will be all zeros or equal to any other Guid is very low. You can determine whether a GUID consists of all zeros by comparing it to Guid::Empty.
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.