Int 16 Fn FFD1  U - PC Tools V5.1-8.0 Desktop - Display Print Options Menu
 Int 16 Fn FFD2  U - PC Tools V5.1-8.0 Desktop - ???
 Int 16 Fn FFD3  U - PC Tools V5.1-8.0 Desktop - ???
 Int 16 Fn FFD4  U - PC Tools V5.1-8.0 Desktop - Create/open/delete File
 Int 16 Fn FFD5  U - PC Tools V5.1-8.0 Desktop - ???
 Int 16 Fn FFD6  U - PC Tools V5.1-8.0 Desktop - ???
 Int 16 Fn FFD7  U - PC Tools V5.1-8.0 Desktop - ???
 Int 16 Fn FFD8  U - PC Tools V5.1-8.0 Desktop - Safe Create File
 Int 16 Fn FFD9  U - PC Tools V5.1-8.0 Desktop - Get ???
 Int 16 Fn FFDA  U - PC Tools V5.1-8.0 Desktop - Get Name Of Last File Opened
 Int 16 Fn FFDB  U - PC Tools V5.1-8.0 Desktop - Set ???
 Int 16 Fn FFDC  U - PC Tools V5.1-8.0 Desktop - Unhook
 Int 16 Fn FFDD  U - PC Tools V5.1+ Pcshell API - Installation Check
 Int 16 Fn FFDD  U - PC Tools V5.1+ Pcshell API - Request Pop-up
 Int 16 Fn FFDD  U - PC Tools V5.1-5.5 Pcshell API - Get ???
 Int 16 Fn FFDD  U - PC Tools V5.1+ Pcshell API - Request Pop-up
 Int 16 Fn FFDD  U - PC Tools V5.1+ Pcshell API - Get ???
 Int 16 Fn FFDD  U - PC Tools V5.1+ Pcshell API - ???
 Int 16 Fn FFDD  U - PC Tools V5.1+ Pcshell API - ???
 Int 16 Fn FFDD  U - PC Tools V5.1+ Pcshell API - Set ??? Flag
 Int 16 Fn FFDD  U - PC Tools V5.1+ Pcshell API - Clear ??? Flag
 Int 16 Fn FFDD  U - PC Tools V6.0+ Pcshell API - Get Pcrun Parameters
 Int 16 Fn FFDD  U - PC Tools V6.0+ Pcrun API - Installation Check
 Int 16 Fn FFDD  U - PC Tools V6.0+ Pcrun API - ???
 Int 16 Fn FFDE  U - PC Tools V5.1-8.0 Desktop - Display Popup Menu
 Int 16 Fn FFDF  U - PC Tools V5.1-8.0 Desktop - ???
 Int 16 Fn FFE0  U - PC Tools V5.1-8.0 Desktop - ???
 Int 16 Fn FFE1  U - PC Tools V5.1-8.0 Desktop - Beep
 Int 16 Fn FFE2  U - PC Tools V5.1-8.0 Desktop - ???
 Int 16 Fn FFE3  U - PC Tools V5.1-8.0 Desktop - Print Character
 Int 16 Fn FFE4  U - PC Tools V5.1-8.0 Desktop - ???
 Int 16 Fn FFE5  U - PC Tools V5.1-8.0 Desktop - Pop Up File Selection Menu
 Int 16 Fn FFE6  U - PC Tools V5.1-8.0 Desktop - Check For And Get Keystroke
 Int 16 Fn FFE7  U - PC Tools V5.1-8.0 Desktop - ???
 Int 16 Fn FFE8  U - PC Tools V5.1-8.0 Desktop - Display Number
 Int 16 Fn FFE9  U - PC Tools V5.1-8.0 Desktop - Get File List???
 Int 16 Fn FFEA  U - PC Tools V5.1-8.0 Desktop - Display Counted String
 Int 16 Fn FFEB  U - PC Tools V5.1-8.0 Desktop - ???
 Int 16 Fn FFEC  U - PC Tools V5.1-8.0 Desktop - Get Key
 Int 16 Fn FFED  U - PC Tools V5.1-8.0 Desktop - Get ???
 Int 16 Fn FFEE  U - PC Tools V5.1-8.0 Desktop - Define Pulldown Menus
 Int 16 Fn FFEF  U - PC Tools V5.1-8.0 Desktop - Installation Check
 Int 16 Fn FFF0  U - PC Tools V5.1-8.0 Desktop - Set ???
 Int 16 Fn FFF1  U - PC Tools V5.1-8.0 Desktop - Alternate Installation Check
 Int 16 Fn FFF2  U - PC Tools V5.1-8.0 Desktop - Display Help Line
 Int 16 Fn FFF3  U - PC Tools V5.1-8.0 Desktop - Prepare To Unload Resident D
 Int 16 Fn FFF4  U - PC Tools V5.1-8.0 Desktop - ???
 Int 16 Fn FFF5  U - PC Tools V5.1-8.0 Desktop - Get Screen Attribute Array
 Int 16 Fn FFF6  U - PC Tools V5.1-8.0 Desktop - Invoke Notepad Editor
 Int 16 Fn FFF7  U - PC Tools V5.1-8.0 Desktop - Process Menu Bar Entry???
 Int 16 Fn FFF8  U - PC Tools V5.1-8.0 Desktop - Draw Empty Window
 Int 16 Fn FFF9  U - PC Tools V5.1-8.0 Desktop - Define Screen Refresh Routin
 Int 16 Fn FFFA  U - PC Tools V5.1-8.0 Desktop - Define Standard Pulldown Men
 Int 16 Fn FFFB  U - PC Tools V5.1-8.0 Desktop - Process Standard Menu Bar
 Int 16 Fn FFFC  U - PC Tools V5.1-8.0 Desktop - Get Hotkeys And Keyboard Vec
 Int 16 Fn FFFD  U - PC Tools V5.1-8.0 Desktop - Copy ???
 Int 16 Fn FFFE  U - PC Tools V5.1-8.0 Desktop - Show Mouse Cursor
 Int 16 Fn FFFF  U - PC Tools V5.1-8.0 Desktop - Hide Mouse Cursor