For the first time in many years you can use popular search engines -- such as Google and Bing -- to search SAP documentation, including SAP IQ documentation. (Previously, the SAP Help Portal and Sybase InfoCenter contents were inaccessible to search engines.)
Try a Google search. For example, search for information on SAP IQ's -ec switch, and confine your search to the SAP Help Portal:
The above search returns these results:
Give it a try today.