I am a very very happy bunny: A friendly guy on c.o.v. (called Jan Erik Soderholm) provided me with source code that does pretty much exactly what I want (well listens to a <protname>% thing from mail and does something with it). And it's in C, so I won't be entirely lost. I think I'll be able to knock out something resembling a working bit of code within a pretty short period of time. Get ready to be on Fidonet guys! Sampsa On 1 Jul 2009, at 22:46, Zane H. Healy wrote: On Wed, 1 Jul 2009, Sampsa Laine wrote: I will take a look at this mail_routines documentation - it's not immediately obvious to me how to write the library with the relevant entry points. As others seem to point out it's rather undocumented - you wouldn't have any old code lying around would you Bob? :) I'd recommend asking such questions on comp.os.vms rather than here. Better to hit a much wider audience. Zane