| Subject | English | Polish |
| comp., MS | control message | komunikat sterujący (An application-readable message requesting the execution of a specific operation on the client side) |
| comp., MS | Internet Control Message Protocol | protokół komunikacyjny sterowania Internetem (A required maintenance protocol in the TCP/IP suite that reports errors and allows simple connectivity. ICMP is used by the Ping tool to perform TCP/IP troubleshooting) |