I found this in httpd.conf:
LoadModule rewrite_module modules/mod_rewrite.so
.so files for linux?
Shouldn't it be
.dll for windows?
Two things I can think of here:
ETA: As mh mentions in a comment, it's actually both: Apache will load .dll files, even though .so is preferred on Windows systems (Source). Of course, even if it's named .so, it's still a normal PE library.
In Windows at least there is no technical requirement for any particular file extension. I imagine the same applies to Linux. File extensions simply provide a mechanism for the OS and the human operators to associate certain files with particular operations or applications.