All four in one download:
ARTIS Screen Tools

All four in one download (for older systems, PowerPC only):
ARTIS Screen Tools

New Universal Version (for Intel):
ARTIS Screen Loupe 1.4
All other applications of the ARTIS Screen Tools
run without problems.

Separate downloads:
ARTIS Screen Ruler
ARTIS Small Screen
ARTIS Screen Loupe (older version)
ARTIS Screen Guides