Seems pretty light on System requirements:

For Help Conquer Cancer, the minimum requirements are:

1. At least 250 MB RAM (with virtual memory enabled)
2. 200 MB Hard Disk Drive with at least 50 MB available for use
3. The ability to display 8-bit graphics at 800x600 resolution
4. An Internet connection with minimum 40kpbs speed
5. Operating System: Windows 98, ME, 2000, XP, or Vista