>>Robert,
>>
>>This is an interesting question.
>>
>>I always provide all of my source code to my clients whether they wrote it into the contract or not. My feeling is that if I provide service that they find of value they will continue to work with me and if they don't then I don't really want to work with them.
>------------------
>Hi Jim and thank you for your answer....It is not so much giving up the source
>code that is the problem...the boss wants me to teach him how to be me and show
>him how I make EXEs...He wants to learn what I know about programming...we at the universalthread share things, but this is different or is it? That is my concern....:)

Then your time training him is surely billable. Jim's point is realy interesting and something to consider as well.