>Is it possible to programatically create a FDF file for a PDF file that has imput fields. I have looked at the structure of several FDF files and it looks like it would be fairly easy to create with the exception of the code that goes after the '/F' tag. I know I can get a tool kit from Acrobat but I just don't want another ActiveX control to keep track of. Thanks!

Yeah, it's possible. I'd suggest using the XFDF format instead, though. It's basically XML and is lot easier to create. Just open a PDF with form fields on it and click on File -> Export -> Form Data, then select XFDF as the filetype. Then type in a filename. Once you've saved it, it should be really easy to see how it's put together.