You'll need to figure out where to point these two paths to:
define("RootDirDisk","/opt/guide/www.new_project.com/HTML/new_project2/");
define("RootDirWeb","/new_project2/");
The RootDirDisk should be something like
C:\phpdev\www\HTML\new_project2 or C://phpdev//www//HTML//new_project2 or maybe just C:\phpdev\www\HTML\new_project2
Sorry, it's been awhile since I have used Apache on Windows π
The RootDirWeb should be pretty close to being correct, if your Apache DOCUMENT_ROOT is set to C:\phpdev\www\HTML
If it is just C:\phpdev\www then change the RootDirWeb to /HTML/new_project2
Make sense? Let me know...