The synchronization engine is a .NET 2.0 application written in C#. It integrates with the Microsoft IIS server at the IHttpHandler level, taking full advantage of the ASP.NET infrastructure. Microsoft SQL Server 2000 is used as a storage for all user data, as well as for internal structures related to synchronization. This web interface is an ASP.NET 2.0 web application (a non-public administrative web application is also available).

Contrary to most SyncML implementations around, Compelson SyncML Server is proud to provide excellent support for national character sets (cyrillic, diacritic characters, etc.) Other distinguished features include recurrent event support in the calendar. Practically it means that you'll see e.g. birthdays in the calendar repeating every year - just as they were meant to be.