Can I use the browser not only to call a host program ? I 
mean if I can call some executable that runs on the same 
machine than your gateway does.
If this is possible, I can use your product integrated with 
my own application.

Do you mean have Screensurfer provide remote execution of 
your application that runs on Windows/NT?

I'm sorry, but Screensurfer can't do that--have you looked 
at Citrix or another of the companies that provides remote 
access?

Thank you very much for your fast answer.

What I want to know is if there is some way (an API or some 
function) of  calling an external C porgram from your 
templates. Or even, if I could call some template (section) 
from my C program.

We do have a DLL API which lets you pass screen coordinates 
and a text string to a user-written DLL function.

That function can then write data to the outbound web page.

We have been thinking about making it a more versatile 
function also with more flexible parameters.

Can you use COM objects in your program?  We do provide a 
COM interface for Screensurfer that lets other programs call 
it to do work.

Also, if you are looking for a simple function that loads 
another program and redirects its output to the outbound 
HTML page, that is something we could add to the product.