What is an ".so" file?

[Meadowlark Bradsher]

Hello all,
I've been away for a long time, it seems. I was abducted you see.
Anyway, I am trying to host asp for my father using my Apache. Rather than forcing him to write in perl, or buying Chili!soft (not made for win98 anyway), I am running PWS (Microsoft Personal Web Server) on port 8080.
Now all I have to do is add rules in the mod_rewrite module to send HTTP requests for asp documents, to the modified URL(to include the port). This is some kind of compiled file but I haven't been able to "find out" what kind of file it is so that I can look for the appropriate SDK.
My father is using an ASP object that is similar to HTTPUnit. I'd like to ween him off of it and onto HTTPUnit, but that is another story.
Do any of you veterans, or whizkids know the answer to what is probably an easy question?
Thanks in advance,
Meadowlark Bradsher
P.S. I hope that all had survived the bubble burst without too much hurt. Its been that long since I have been here.

[Meadowlark Bradsher]

ummm...or does anyone know where I can find discussing about Apache mod files?
anybody?
anybody?
bueller?

[Meadowlark Bradsher]

I'm making progress!
I haven't heard from anybody on this but the minutes in the day when I am reading the correct reference information for my pickle has been elapsing!
Although not relevant to my needs, an ".so" file probably means "shared object" as in the "Dynamic Shared Objects" heading in the documentation on the Apache httpd configuration file that refers to these ".so" files.
However it is in that config file that I found that I probably don't need to compile a config file (what's the point of that being a config file then?). Silly Meadowlark!
I did some virtual hosting set up, using a separate port for hosting a website for my condo association (a separate issue - incidentally I used port based virtual hosting cuz I don't have a domain for condo site, and only one IP on my server). Shazbat! But I haven't tried to do the PWS as ASP app server trick yet.
Why am I doing all of this, in this fashion? Because I am cheap cheap cheap! And by constraint not design!

[Meadowlark Bradsher]

I just have one problem. I don't know where to start writing the mod_rewrite rules (if in the "httpd" file if so where, or elsewhere?). Since this wasn't a very popular thread I initiated this query in a new one.
Help me!
Maybe it's because noone want to facilitate my use of the evil empire (MS as in ASP) but I am doing it for my Javaless father. Thomas Paul back me up here!