1600 - KEYBOARD - GET KEYSTROKE
 1601 - KEYBOARD - CHECK FOR KEYSTROKE
 1602 - KEYBOARD - GET SHIFT FLAGS
 1603 - KEYBOARD - SET TYPEMATIC RATE AND DELAY
 1604 - KEYBOARD - SET KEYCLICK (PCjr only)
 1605 - KEYBOARD - STORE KEYSTROKE IN KEYBOARD BUFFER (AT/PS w enh keybd only)
 1605 - KEYBOARD - SELECT KEYBOARD LAYOUT (PCjr only)
 1609 - KEYBOARD - GET KEYBOARD FUNCTIONALITY
 160A - KEYBOARD - GET KEYBOARD ID
 1610 - KEYBOARD - GET ENHANCED KEYSTROKE (enhanced kbd support only)
 1611 - KEYBOARD - CHECK FOR ENHANCED KEYSTROKE (enh kbd support only)
 1612 - KEYBOARD - GET EXTENDED SHIFT STATES (enh kbd support only)
 1620 - KEYBOARD - GET 122-KEY KEYSTROKE???
 1621 - KEYBOARD - CHECK FOR 122-KEY KEYSTROKE???
 1622 - KEYBOARD - GET 122-KEY SHIFT STATUS???
 164252 - TEXTCAP 2.0 - INSTALLATION CHECK
 164253 - TEXTCAP 2.0 - UNINSTALL
 164254 - TEXTCAP 2.0 - DUMP TEXT SCREEN TO FILE
 164500 - Shamrock Software EMAIL - GET STATUS
 164501 - Shamrock Software EMAIL - GET ELAPSED ONLINE TIME AND MAXIMUM TIME
 164502 - Shamrock Software EMAIL - GET CURRENT COMMUNICATIONS PARAMETERS
 164503 - Shamrock Software EMAIL - SPECIFY COMMAND-WORD FOR USER FUNCTION
 164504 - Shamrock Software EMAIL - CHECK FOR USER FUNCTION COMMAND-WORD
 164505 - Shamrock Software EMAIL - SEND RESULT OF USER FUNCTION
 164506 - Shamrock Software EMAIL - MONITOR XMODEM DOWNLOAD
 165000 - KEYBOARD - AX PC - SET KEYBOARD COUNTRY CODE
 165001 - KEYBOARD - AX PC - GET KEYBOARD COUNTRY CODE
 1651 - KEYBOARD - AX PC - READ SHIFT KEY STATUS
 165500 - Microsoft Word internal - MICROSOFT WORD COOPERATION WITH TSR
 1655FF - Swap Utilities - ???
 166969BX6968 - PC Tools v5.1+ BACKTALK - UNHOOK
 166969BX6969 - PC Tools v5.1+ BACKTALK - INSTALLATION CHECK
 166F00BX0000 - HP Vectra - ??? - INSTALLATION CHECK
 166F0D - HP Vectra - ???
 166F0E - HP Vectra - ???
 1670 - FAKEY.COM - INSTALLATION CHECK
 1671 - FAKEY.COM - PUSH KEYSTROKES
 1672 - FAKEY.COM - CLEAR FAKED KEYSTROKES
 1673 - FAKEY.COM - PLAY TONES
 1675 - pcANYWHERE III - SET TICK COUNT FOR SCANNING
 1676 - pcANYWHERE III - SET ERROR CHECKING TYPE
 1677 - pcANYWHERE III - LOG OFF
 167761 - WATCH.COM v2.x-v3.0 - INSTALLATION CHECK
 167788BX7789 - PC Magazine PUSHDIR.COM - INSTALLATION CHECK
 1679 - pcANYWHERE III - CHECK STATUS
 167A - pcANYWHERE III - CANCEL SESSION
 167B00 - pcANYWHERE III - SUSPEND
 167B01 - pcANYWHERE III - RESUME
 167C - pcANYWHERE III - GET PORT CONFIGURATION
 167D - pcANYWHERE III - GET/SET TERMINAL PARAMETERS
 167E - pcANYWHERE III - COMMUNICATIONS I/O THROUGH PORT
 167F - pcANYWHERE III - SET KEYBOARD/SCREEN MODE
 1680 - MAKEY.COM - INSTALLATION CHECK
 168765BX4321 - AT.COM version 8/26/87 - API
 1692 - ???
 1699 - SCOUT v5.4 - GET ???
 169E - SCOUT v5.4 - INSTALLATION CHECK
 16A2 - ???
 16AA - PTxxx.COM - (xxx=CGA,EGA,VGA,HER...) CALL GATE FOR GRAPHICS
 16CA - CtrlAlt Associates STACKEY.COM v3.00 - API
 16CA00BX6570 - CtrlAlt Associates EGAPAL.COM v1.00 - INSTALLATION CHECK
 16CA00BX7670 - CtrlAlt Associates VGAPAL.COM v1.00 - INSTALLATION CHECK
 16E0E0 - TurboPower TSRs - ALTERNATE INSTALLATION CHECK
 16ED - BORLAND TURBO LIGHTNING - API
 16F0 - Compaq 386 - SET CPU SPEED
 16F0F0 - TurboPower TSRs - INSTALLATION CHECK
 16F1 - Compaq 386 - READ CURRENT CPU SPEED
 16F2 - Compaq 386 - DETERMINE ATTACHED KEYBOARD TYPE
 16F3 - Compaq 80286s - SET CPU SPEED LIMIT (OVERRIDE JUMPER)
 16F398 - NORTON GUIDES - INSTALLATION CHECK
 16F400 - Compaq Systempro - CACHE CONTROLLER STATUS
 16F401 - Compaq Systempro - ENABLE CACHE CONTROLLER
 16F402 - Compaq Systempro - DISABLE CACHE CONTROLLER
 16FEA4 - PC Tools 7 CPSCHED/DESKTOP - ???
 16FEC6 - PC Tools 7 CPSCHED - ???
 16FED3 - PC Tools 7 CPSCHED/DESKTOP - ???
 16FEDC - PC Tools 7 CPSCHED - ???
 16FEEFCX0000 - PC Tools 7 CPSCHED/DESKTOP - INSTALLATION CHECK
 16FEF1 - PC Tools 7 CPSCHED/DESKTOP - ???
 16FF - KEYBOARD - KBUF extensions - ADD KEY TO TAIL OF KEYBOARD BUFFER
 16FF - OPTIMA 1024 VGA-Sync - QUERY ZOOM INTERRUPT
 16FF91 - PC Tools 7 DESKTOP - ???
 16FF92 - PC Tools 7 DESKTOP - ???
 16FF93 - PC Tools 7 DESKTOP - SET ??? FLAG
 16FF94 - PC Tools 7 DESKTOP - SET ???
 16FF95 - PC Tools 7 DESKTOP - SET ???
 16FF96 - PC Tools 7 DESKTOP - ???
 16FF97 - PC Tools 7 DESKTOP - ???
 16FF98 - PC Tools 7 DESKTOP - READ ??? FROM \DESK.OVL FILE
 16FF99 - PC Tools 7 DESKTOP - ???
 16FF9A - PC Tools 7 DESKTOP - GET NAME OF COLOR SCHEME
 16FF9B - PC Tools 7 DESKTOP - UNUSED???
 16FF9E - PC Tools 7 DESKTOP - ???
 16FFA1 - PC Tools 7 DESKTOP - ???
 16FFA2 - PC Tools 7 DESKTOP - ???
 16FFA3BX0000 - PC Tools 7 DATAMON - INSTALLATION CHECK
 16FFA3BX0001 - PC Tools 7 DATAMON - GET ???
 16FFA3BX0002 - PC Tools 7 DATAMON - GET ???
 16FFA3BX0003 - PC Tools 7 DATAMON - GET ???
 16FFA3BX0004 - PC Tools 7 DATAMON - SET ??? FLAG
 16FFA3BX0005 - PC Tools 7 DATAMON - CLEAR ??? FLAG
 16FFA3BX0006 - PC Tools 7 DATAMON - SET PSP SEGMENT ???
 16FFA4 - PC Tools 7 DESKTOP - ???
 16FFA5CX1111 - PC-Cache v6+ - INSTALLATION CHECK
 16FFA5CXAAAA - PC-Cache v6+ - ENABLE DELAYED WRITES
 16FFA5CXCCCC - PC-Cache v6+ - FLUSH CACHE AND DISABLE DELAYED WRITES
 16FFA5CXDDDD - PC-Cache v6+ - FLUSH AND DISABLE CACHE
 16FFA5CXEEEE - PC-Cache v6+ - ENABLE CACHE
 16FFA5CXFFFF - PC-Cache v6+ - FLUSH CACHE
 16FFA6 - PC Tools v6.0+ DESKTOP API - GET ???
 16FFA7 - PC Tools v6.0+ DESKTOP API - GET ??? PATH
 16FFA8 - PC Tools v6.0+ DESKTOP API - ???
 16FFA9 - PC Tools v6.0+ DESKTOP API - GET VERSION STRING
 16FFAA - PC Tools v6.0+ DESKTOP API - ???
 16FFAB - PC Tools v6.0+ DESKTOP API - GET EDITOR SETTINGS???
 16FFAC - PC Tools v6.0+ DESKTOP API - SET ???
 16FFAD - PC Tools v6.0+ DESKTOP API - SET ???
 16FFAE - PC Tools v6.0+ DESKTOP API - GET ???
 16FFAF - PC Tools v6.0+ DESKTOP API - SET ???
 16FFB0 - PC Tools v6.0+ DESKTOP API - SET ???
 16FFB1 - PC Tools v6.0+ DESKTOP API - ???
 16FFB2 - PC Tools v5.5+ DESKTOP API - GET ???
 16FFB3 - PC Tools v5.5+ DESKTOP API - ???
 16FFB4 - PC Tools v5.5+ DESKTOP API - SET ??? FLAG
 16FFB5 - PC Tools v5.5+ DESKTOP API - GET/SET WINDOW PARAMETERS
 16FFB6 - PC Tools v5.5+ DESKTOP API - GET ???
 16FFB7 - PC Tools v5.5+ DESKTOP API - GET/SET ???
 16FFB8 - PC Tools v5.1+ DESKTOP API - GET/SET???
 16FFB9 - PC Tools v5.1+ DESKTOP API - ???
 16FFBA - PC Tools v5.1+ DESKTOP API - ???
 16FFBB - PC Tools v5.1+ DESKTOP API - CLEAR ??? FLAG
 16FFBC - PC Tools v5.1+ DESKTOP API - RESTORE ORIGINAL SCREEN???
 16FFBD - PC Tools v5.1+ DESKTOP API - ??? DATABASE INDEXING MESSAGES
 16FFBE - PC Tools v5.1+ DESKTOP API - ???
 16FFBF - PC Tools v5.1+ DESKTOP API - ???
 16FFC0 - PC Tools v5.1+ DESKTOP API - ???
 16FFC1 - PC Tools v5.1+ DESKTOP API - ???
 16FFC2 - PC Tools v5.1+ DESKTOP API - ???
 16FFC3 - PC Tools v5.1+ DESKTOP API - ???
 16FFC4 - PC Tools v5.1+ DESKTOP API - GET ???
 16FFC5 - PC Tools v5.1+ DESKTOP API - CHECK WHETHER DESKTOP LOADED RESIDENT
 16FFC6 - PC Tools v5.1+ DESKTOP API - SET ???
 16FFC7 - PC Tools v5.1+ DESKTOP API - REMOVE WINDOW
 16FFC8 - PC Tools v5.1+ DESKTOP API - GET ???
 16FFC9 - PC Tools v5.1+ DESKTOP API - COPY DATA TO CLIPBOARD
 16FFCA - PC Tools v5.1+ DESKTOP API - SET ???
 16FFCB - PC Tools v5.1+ DESKTOP API - SELECT WINDOW PARAMETERS???
 16FFCC - PC Tools v5.1+ DESKTOP API - DISPLAY ASCIZ STRING CENTERED IN WINDOW
 16FFCD - PC Tools v5.1+ DESKTOP API - ???
 16FFCE - PC Tools v5.1+ DESKTOP API - SET ??? DELAYS
 16FFCF - PC Tools v5.1+ DESKTOP API - CLOSE PRINTER/PRINT FILE
 16FFD0 - PC Tools v5.1+ DESKTOP API - PREPARE TO PRINT???
 16FFD1 - PC Tools v5.1+ DESKTOP API - DISPLAY PRINT OPTIONS MENU
 16FFD2 - PC Tools v5.1+ DESKTOP API - ???
 16FFD3 - PC Tools v5.1+ DESKTOP API - ???
 16FFD4BH3C - PC Tools v5.1+ DESKTOP API - CREATE/OPEN/DELETE FILE
 16FFD5 - PC Tools v5.1+ DESKTOP API - ???
 16FFD6 - PC Tools v5.1+ DESKTOP API - ???
 16FFD7 - PC Tools v5.1+ DESKTOP API - ???
 16FFD8 - PC Tools v5.1+ DESKTOP API - SAFE CREATE FILE
 16FFD9 - PC Tools v5.1+ DESKTOP API - GET ???
 16FFDA - PC Tools v5.1+ DESKTOP API - GET NAME OF LAST FILE OPENED
 16FFDB - PC Tools v5.1+ DESKTOP API - SET ???
 16FFDC - PC Tools v5.1+ DESKTOP API - UNHOOK
 16FFDDBX0000 - PC Tools v5.1+ PCShell API - INSTALLATION CHECK
 16FFDDBX0001 - PC Tools v5.1+ PCShell API - REQUEST POP-UP
 16FFDDBX0002 - PC Tools v5.1-5.5 PCShell API - GET ???
 16FFDDBX0003 - PC Tools v5.1+ PCShell API - REQUEST POP-UP
 16FFDDBX0004 - PC Tools v5.1+ PCShell API - GET ???
 16FFDDBX0005 - PC Tools v5.1+ PCShell API - ???
 16FFDDBX0006 - PC Tools v5.1+ PCShell API - ???
 16FFDDBX0007 - PC Tools v5.1+ PCShell API - SET ??? FLAG
 16FFDDBX0008 - PC Tools v5.1+ PCShell API - CLEAR ??? FLAG
 16FFDDBX0009 - PC Tools v6.0+ PCShell API - GET PCRUN PARAMETERS
 16FFDDBX000A - PC Tools v6.0+ PCRUN API - INSTALLATION CHECK
 16FFDDBX000B - PC Tools v6.0+ PCRUN API - ???
 16FFDE - PC Tools v5.1+ DESKTOP API - DISPLAY POPUP MENU
 16FFDF - PC Tools v5.1+ DESKTOP API - ???
 16FFE0 - PC Tools v5.1+ DESKTOP API - ???
 16FFE1 - PC Tools v5.1+ DESKTOP API - BEEP
 16FFE2 - PC Tools v5.1+ DESKTOP API - ???
 16FFE3 - PC Tools v5.1+ DESKTOP API - PRINT CHARACTER
 16FFE4 - PC Tools v5.1+ DESKTOP API - ???
 16FFE5 - PC Tools v5.1+ DESKTOP API - POP UP FILE SELECTION MENU
 16FFE6 - PC Tools v5.1+ DESKTOP API - CHECK FOR AND GET KEYSTROKE
 16FFE7 - PC Tools v5.1+ DESKTOP API - ???
 16FFE8 - PC Tools v5.1+ DESKTOP API - DISPLAY NUMBER
 16FFE9 - PC Tools v5.1+ DESKTOP API - GET FILE LIST???
 16FFEA - PC Tools v5.1+ DESKTOP API - DISPLAY COUNTED STRING
 16FFEB - PC Tools v5.1+ DESKTOP API - ???
 16FFEC - PC Tools v5.1+ DESKTOP API - GET KEY
 16FFED - PC Tools v5.1+ DESKTOP API - GET ???
 16FFEE - PC Tools v5.1+ DESKTOP API - DEFINE PULLDOWN MENUS
 16FFEFCX0000 - PC Tools v5.1+ DESKTOP API - INSTALLATION CHECK
 16FFF0 - PC Tools v5.1+ DESKTOP API - SET ???
 16FFF1BX0000 - PC Tools v5.1+ DESKTOP API - ALTERNATE INSTALLATION CHECK
 16FFF2 - PC Tools v5.1+ DESKTOP API - DISPLAY HELP LINE
 16FFF3 - PC Tools v5.1+ DESKTOP API - PREPARE TO UNLOAD RESIDENT DESKTOP
 16FFF4 - PC Tools v5.1+ DESKTOP API - ???
 16FFF5 - PC Tools v5.1+ DESKTOP API - GET SCREEN ATTRIBUTE ARRAY
 16FFF6 - PC Tools v5.1+ DESKTOP API - INVOKE NOTEPAD EDITOR
 16FFF7 - PC Tools v5.1+ DESKTOP API - PROCESS MENU BAR ENTRY???
 16FFF8 - PC Tools v5.1+ DESKTOP API - DRAW EMPTY WINDOW
 16FFF9 - PC Tools v5.1+ DESKTOP API - DEFINE SCREEN REFRESH ROUTINE
 16FFFA - PC Tools v5.1+ DESKTOP API - DEFINE STANDARD PULLDOWN MENUS
 16FFFB - PC Tools v5.1+ DESKTOP API - PROCESS STANDARD MENU BAR
 16FFFC - PC Tools v5.1+ DESKTOP API - GET HOTKEYS AND KEYBOARD VECTOR
 16FFFD - PC Tools v5.1+ DESKTOP API - COPY ???
 16FFFE - PC Tools v5.1+ DESKTOP API - SHOW MOUSE CURSOR
 16FFFF - PC Tools v5.1+ DESKTOP API - HIDE MOUSE CURSOR