<ST_Clsid>
(Class ID Simple Type)
The ST_Clsid simple type specifies the type for the <clsid>
element. The allowed values must be Globally Unique Identifiers with format: {HHHHHHHH-HHHH-HHHH-HHHH-HHHHHHHH}.
This simple type's contents are a restriction of the XML Schema string datatype.
This simple type also specifies the following restrictions:
This simple type's contents must match the following regular expression pattern: \s*\{[a-fA-F0-9]{8}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{12}\}\s*.