Main Page | See live article | Alphabetical index ICS is Internet Connection Sharing a method in Windows 2000 and XP for sharing a single internet connection on one computer between other computers on the same network. See Network address translation ICS also stands for Internet Chess Server. See Internet Chess Club. ICS is used as the official abbreviation for InterCitySlovenija, a high speed Slovenian tilting train. This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.