Comments:

• use strict;
  use warnings;
  [download]

• Clean up all the warnings it gives you.
• Oh, and you shouldn't uc the filename. For one thing, Windows isn't case sensitive anyway, so it's just wasting CPU cycles. For another, it makes it harder to read for those of us on other platforms (I thought I was supposed to save your data as "test.ini" not "TEST.INI")

You have a number of barewords there that aren't going to be doing what you think they're doing - strict would have told you about them, and then you could put them in single quotes and all would work fine.