| Subject | English | Welsh |
| comp., MS | Directory Management Service | Gwasanaeth Rheoli Cyfeiriadur (A service used to manage distribution lists) |
| comp., MS | Key Management Service | Gwasanaeth Rheoli Allweddi (An optional Microsoft Exchange 2000 Server component that is installed on a designated server in an administrative group. It provides centralized administration and archival of private keys, and maintains every user s private encryption key in an encrypted database. The keys are used for encrypting e-mail messages and signing messages with digital signatures) |
| comp., MS | Receivable Management Services | Gwasanaethau Rheoli Derbyniadwy (A company that provides accounts receivable and debt collection services) |
| comp., MS | Work Management Service | Gwasanaeth Rheoli Gwaith (A SharePoint shared service that aggregates tasks that systems such as SharePoint, Project Server, and Exchange assign to users) |