Thank you for the guide lines nemesis, very interesting, didn't know 
many of this stuff. But what I meant is that the editor could be more 
than just a start or stop of POV-Ray, could be a config manager(memory, 
defaults, output format, etc) and all other stuff a normal IDE does, 
since, as you maight know, POV-Ray is only a DOS-line Raytracer in its 
core.

  Anyway, I thought that the IDE did some special tasks with the 
renderer pre- and at runtime, like serving files, parameters, config 
preferences and other stuff it may need but looks like I thoght wrong. I 
figured that both passed info to each other in special may: with shared 
variables or other data structures directly in memory.

  A few questions please(I've always wondered about theses):
1) DDE is sucha practice?
2) Why does windows have sucha implementation for programs?
3) and to complete the previous question. What are the most effective 
ways to pass parameter without using a command line. Command line looks 
like rustic/rough way to pass data to another program, should both 
programs communicate with each other directly in memory? I figure that 
they could have specialized functions to ask each other attention to 
communicate (pass data/parameters, request functions/calculus or any 
other unteraction).

  Pardon my ignorance.

Regards.
Saul.

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