Enhancing the BizTalk Mapper: How to Wrap XSLT in Custom Functoids

I've published an article on this topic in the latest issue of BizTalk HotRod, the online magazine for BizTalk developers. It's at page 44.

http://biztalkhotrod.com/Documents/BizTalk_HotRod_Issue6_Q2_2009.pdf

In the article I describe a problem that's easy to solve using an Inline XSLT Call Template. Then I show how to turn the Inline XSLT Call Template into a custom functoid that can be deployed to the Mapper toolbox, so that developers with no XSLT knowledge can use it without seeing the script or writing any code.