| Abbreviation | Definition |
|---|---|
| MS | Merchant Server |
| MS | MicroSoft |
| MS | Mirrored Server |
| MS/TP | Master-Slave/Token-Passing |
| MSBP | Member Server Baseline Policy |
| MSCHAP | Microsoft Challenge Handshake Authentication Protocol |
| MSCHAP | MicroSoft Challenge-Handshake Authentication Protocol |
| MSD | Microsoft System Diagnostic |
| MSDL | Multi-purpose Serial Data Link |
| MSDP | Multicast Source Discovery Protocol |
| MSDU | MAC Service Data Units |
| MSEN | Master of System Engineering Networking |
| MSFC | Multi-layer Switch Feature Card |
| MSIE | Microsoft Internet Explorer |
| MSIN | Master of Science in Information Networking |
| MSL | Mock Service Layer |
| MSM | Multilayer Switch Module |
| MSM | Multi-layer Switch Module |
| MSMQ | Microsoft Message Queuing |
| MSN | Mega Software Net |