How2 filter out all lines between...

[Anon]

I need to filter out (delete?) all the lines between two other, which we could imagine like a header and a footer, of a text file.
To be clear...
Suppose the file contains the following lines:

lineA
lineB
lineC
----<AAA-START>----
line1
line2
line3
----<AAA-END>----
lineD
lineE
----<BBB-START>----
line1
line2
line3
----<BBB-END>----
lineF
lineG
[and so on...]

What I want to have to the output is a file, with the same name of the original, which contains all but the lines between ----<AAA-START>---- and ----<AAA-END>----.

In a first release of my site I did it easily using "sed" filter because I was on a Unix machine... but now I'm trying to do it with an Apache server on Win/NT and I can't use sed...
Could you help me?
Thanks in advance,

Enzo

[junebug]

$file = "file read in";

$file = ereg_replace("(---*---)", "", $file);

[Anon]

Your answer was a little bit cryptic for me...
but it was a good start point for reaching the result wanted. Now it works.

Thanks