What is the Aggregate Web Services plug-in?

The Aggregate Web Services plug-in is a small plugin adding the aggregate method into all direct web services in ServiceNow. SnowMirror is using this new operation to count the records to insert or update before the actual download starts. By activating the plugin the progress bars work better, the count buttons enable you to count records in tables and SnowMirror is able to optimize the downloading algorithm a bit.