Having never developed an XLL before, I can't recommend a compiler.

I believe most XLL developers start with Generic.XLL
http://support.microsoft.com/support.../Q152/1/52.asp

This site has a lot of useful information too:
http://www.whooper.co.uk/excelstuff.htm


--
Rob van Gelder - http://www.vangelder.co.nz/excel


wrote in message
...
I need to build an xll to speed up some UDFs I have
built. What version of Visual C++ should I use/buy? I
will only use the development tool to do build xll
files. Do any of the versions come with help to start
building an xll so that I don't have to figure out all
the tricks? Maybe a skeleton project to start with where
I can add my functions to get started.

Thanks in advance for any help.

Dave