SyncML as a protocol is obsolete. Modern smartphones use , iCloud , Google Sync , or CardDAV/CalDAV . Microsoft has not updated Windows Mobile Device Center since 2009. Therefore, csrsyncmlserver.exe is a relic.
If you find a legitimate csrsyncmlserver.exe in the correct Microsoft directory, you have two options. csrsyncmlserver.exe
As with many executables, malicious software can disguise itself by using the same name. SyncML as a protocol is obsolete