ShadowKeys has been tested successfuly with many applications andparticularly with Adobe FrameMaker, QuarkXPress, ClarisWorks, MS Office and several developer tools.
The memory usage (footprint memory) is very tight, less than 200 bytes in system heap, and ShadowKeys doesn't patch any system trap;it uses a documented service.
System Requirements: iMac, G3, or G4 with an Apple USB Keyboard. ShadowKeys 1.0 works fine under Mac OS 8.5, 8.6, 9.0, and 9.0.4. Limited to 60 Trials