The Guid() function generates a Globally Unique Identifier (GUID).
see wikipedia to learn more about GUIDs.
Syntax
Guid()
Returns
A text that contains a GUID.
Example
An example GUID
"3F2504E0-4F89-41D3-9A0C-0305E82C3301"
+31 (0)20 240 21 20 
