This object indicates the total number of SharePoint Pre-fetch
optimized HTTP sessions. This counter is incremented
for every session on which SharePoint pre-fetch optimization
can be performed. An HTTP session is tagged as a SharePoint
pre-fetch Session based on the information present in the HTTP
request. A pre-fetch operation is one where the edge WAAS
device fetches the next set of data (which it anticipates the
client will request later) from the server based on the current
HTTP Request information.