David,
>Are there any examples of how to use this class? Does it need to be associated with a datasession?
There aren't any examples in the sample app, if that's what you mean...if you do a word search on "CSqlPassThrough" you'll find it referred to several times in a few different topics in the Developer's Guide, along with instructions for using it.
Regards,
Kevin McNeish
Eight-Time .NET MVP
VFP and iOS Author, Speaker & Trainer
Oak Leaf Enterprises, Inc.
Chief Architect, MM Framework
http://www.oakleafsd.com