Look here:
PHP and Register Global Variables for far more than you would ever want to know about the subject. Modern software should no longer require register global variables to be "on", while older levels frequently made use of them (needed them set "on"). It sounds like you're just getting a warning that Drupal no longer requires register globals to be on, and is alerting you that you
do have them on anyway.
Creating the php.ini file as described, adding in the line to indicate that variable should be set to off seems to have done the trick! Yeah, back when I first setup my account with LP, I know it had to be enabled to make things work. Boy, have things changed since then!
Next, I need to figure out if I can simply upgrade the PHP version in use on my site to 5.x without any worries for Drupal. That will mean that (finally!) there will be a closer match between what I'm using in my local install (thru XAMPP) and what is actually ON the server. If I keep going ahead with my plans for writing my own PHP modules for Drupal, that is!