UUIDGEN.EXE is a Microsoft utility that generates unique, byte-order independent identifiers. This utility has several uses in the MAPI environment. The following table indicates some of the ways that MAPI components can use this utility.
| MAPI component |
Use of UUIDGEN.EXE |
| Service provider |
Creating new hardcoded MAPIUIDs. |
| Form |
Creating new class identifiers for forms. |
| Client application or service provider |
Identifying hardcoded global profile section. |
| Client application or service provider |
Creating new property sets for named properties. |