This content is no longer actively maintained. It is provided as is, for anyone who may still be using these technologies, with no warranties or claims of accuracy with regard to the most recent product version or service release.
A collblob is the opaque binary stream generated by the server that represents the state of the contents of a collection. The collblob contains information about changes in the contents of the collection on the server and the query specified in the request for the Manifest of a Collection. The collblob tracks only resources that match the search criteria specified in the SEARCH Method query in the manifest request.
The server returns the collblob data in the collblob XML Element in response to the client's request for the Manifest of a Collection. If the client has previously obtained a collblob for a collection, then the client must include the old collblob in the collblob XML Element as part of the request for the Manifest of a Collection.