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| Domain mode | Workgroup mode |
| Must be installed on a domain controller. | No domain controller installation is required. Message Queuing is installed only on the computers that use Message Queuing. |
| Full access to all the features of Message Queuing. | Not available in Message Queuing 1.0. |
| Uses direct format names, not path names. | |
| Features only private queues. | |
| The queues must be created and managed on the local computer. | |
| No built-in encryption and authentication security features. |
| Domain mode | Workgroup mode |
| Benefits | |
| Security features, such as encryption and authentication, are included. | The load on the domain controller is reduced. |
| Path names are permitted. This may make the code clearer. For example, if you send a message to a non-existent queue, you receive an error message. | Administration is simpler. The Active Directory administrators do not have worry about the domain controller going down. |
| Public queues can be accessed. Dynamic queue lookups are supported. | The features that are available are sufficient for most applications. |
| The code that is written to workgroups is mode-portable. The code works on computers in Domain mode, in Workgroup mode, and on computers that are members of different forests. | |
| Drawbacks | |
| The load on the domain controller is increased. | The built-in security features are not available. |
| The Active Directory administrators may be reluctant to install Message Queuing 2.0 and later versions on a domain controller. | Dynamic queue lookups are not available. |
| Problems may occur if a domain controller goes down or becomes inaccessible. |
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