Why are there dashes in a .NET GUID?

Question

Why are there dashes in a .NET GUID? Are there dashes in most implementations of a GUID, or is it just a Microsoft thing?

Signed,

741ecf77-9c92-4435-8e6b-859

Answer 1

The hyphens are used to separate each number

E93416C5-9377-4A1D-8390-7E57D439C9E7

Hex digits  Description
8           Data1
4           Data2
4           Data3
4           Initial two bytes from Data4
12          Remaining six bytes from Data4