[PHP] $DOCUMENT_ROOT

[Toby Miller]

Whenever I include files in Apache I always do it like this:

include($DOCUMENT_ROOT."/folder/file.php");

However, now I am doing a site in IIS and I do not have $DOCUMENT_ROOT at my disposal. 
What do most of you usually do to workaround this? Aside from installing Apache and 
Linux and bypassing the whole Windows thing :)

Thanks,
Toby