To use these cursors on Windows 9x, NT 4.0, Win2k and XP, extract them to your
%systemroot%\cursors directory. Then go to control panel, mouse. Select the pointers 
tab, select busy, working in background, and default cursor and then browse for your 
new cursor files in the listed directory.

(Substitute %systemroot% for the directory where Windows is installed on your computer.)
