The IsapiRequestQueueSize entry is the maximum number of server query requests to queue while Indexing Service is busy with other queries.
|Range:||0 - 100000|
If the number of query requests exceeds the value of the IsapiRequestQueueSize entry, subsequent query requests fail. To allow simultaneous queuing of more queries, increase this value.
The value of an identically named entry under the Catalog subkey for a specific catalog cannot override the value of this entry.