Int 21 Fn A55A  - Virus - "eddie-2" - Installation Check
 Int 21 Fn AA00  - Virus - "blinker" - Installation Check
 Int 21 Fn AA03  - Virus - "backtime" - Installation Check
 Int 21 Fn AB  - Virus - "600" Or "voronezh"-family - Installation Check
 Int 21 Fn AF  - Attachmate Extra - Get Translate Table Address
 Int 21 Fn B3  U - Novell Netware - DOS Requester V1.03 - ???
 Int 21 Fn B4  U - Novell Netware - "attachhandle"
 Int 21 Fn B500  U - Novell Netware - Vnetware.386 API - Get Instance Data
 Int 21 Fn B501  U - Novell Netware - Vnetware.386 API - End Virtual Machine
 Int 21 Fn B502  U - Novell Netware - Vnetware.386 API - Start Virtual Machin
 Int 21 Fn B5  - Novell Netware Shell 3.01 - Task Mode Control
 Int 21 Fn B505  U - Novell Netware - Vnetware.386 API - Set Virtual Machine
 Int 21 Fn B506  U - Novell Netware - Vnetware.386 API - Get Virtual Mach Sup
 Int 21 Fn B6  - Novell Netware - File Services - Extended File Attributes
 Int 21 Fn B7  U - Novell Netware - "holdfilemodeset" (obsolete)
 Int 21 Fn B8  - Attachmate Extra - Disable Host Buffer Updates
 Int 21 Fn B800  - Novell Netware - Print Services - Get Default Capture Flag
 Int 21 Fn B801  - Novell Netware - Print Services - Set Default Capture Flag
 Int 21 Fn B802  - Novell Netware - Print Services - Get Specific Capture Fla
 Int 21 Fn B803  - Novell Netware - Print Services - Set Specific Capture Fla
 Int 21 Fn B804  - Novell Netware - Print Services - Get Default Local Printe
 Int 21 Fn B805  - Novell Netware - Print Services - Set Default Local Printe
 Int 21 Fn B806  - Novell Netware - Print Services - Set Capture Print Queue
 Int 21 Fn B807  - Novell Netware - Print Services - Set Capture Print Job
 Int 21 Fn B808  - Novell Netware - Print Services - Get Banner User Name
 Int 21 Fn B809  - Novell Netware - Print Services - Set Banner User Name
 Int 21 Fn B9  U - Novell Netware - "specialattachablefunction"
 Int 21 Fn BA  U - Novell Netware - "returncommandcompointers"
 Int 21 Fn BB  - Novell Netware - Workstation - Set End Of Job Status
 Int 21 Fn BBBB  - Virus - "hey You" - Installation Check
 Int 21 Fn BC  - Novell Netware - Synchronization Services - Log Physical Rec
 Int 21 Fn BD  - Novell Netware - Synchronization Services - Release Physical
 Int 21 Fn BE  - Novell Netware - Synchronization Services - Clear Physical R
 Int 21 Fn BE  - Virus - "datalock" - Installation Check
 Int 21 Fn BE00  - Virus - "ussr-1049" - Installation Check
 Int 21 Fn BF  O - Novell Netware, Alloy Ntnx - Log/lock Record (fcb)
 Int 21 Fn C0  O - Novell Netware, Alloy Ntnx - Release Record (fcb)
 Int 21 Fn C0  - Virus - "slow"/"zerotime", "solano" - Installation Check
 Int 21 Fn C1  O - Novell Netware, Alloy Ntnx - Clear Record (fcb)
 Int 21 Fn C1  - Virus - "solano" - ???
 Int 21 Fn C2  - Novell Netware - Synchronization Services - Lock Physical Re
 Int 21 Fn C2  - Virus - "scott's Valley" - ???
 Int 21 Fn C3  - Novell Netware - Synchronization Services - Release Physical
 Int 21 Fn C301  - Virus - "905"/"backfont" - Installation Check
 Int 21 Fn C4  - Novell Netware - Synchronization Services - Clear Physical R
 Int 21 Fn C500  - Novell Netware - Synchronization Services - Open Semaphore
 Int 21 Fn C500  - Virus - "sverdlov" - Installation Check
 Int 21 Fn C501  - Novell Netware - Synchronization Services - Examine Semaph
 Int 21 Fn C502  - Novell Netware - Synchronization Services - Wait On Semaph
 Int 21 Fn C503  - Novell Netware - Synchronization Services - Signal Semapho
 Int 21 Fn C504  - Novell Netware - Synchronization Services - Close Semaphor
 Int 21 Fn C6  - Novell Netware - Synchronization Services - Get Or Set Lock
 Int 21 Fn C6  - Virus - "socha" - Installation Check
 Int 21 Fn C603  - Virus - "yankee" Or "mlti" - Installation Check
 Int 21 Fn C700  - Novell Netware - Transaction Tracking System - Begin Trans
 Int 21 Fn C700  - Virus - "mh-757" - Installation Check
 Int 21 Fn C701  - Novell Netware - Transaction Tracking System - End Transac
 Int 21 Fn C702  - Novell Netware - Transaction Tracking System - Installatio
 Int 21 Fn C703  - Novell Netware - Transaction Tracking System - Abort Trans
 Int 21 Fn C704  - Novell Netware - Transaction Tracking System - Transaction
 Int 21 Fn C705  - Novell Netware - Transaction Tracking System - Get Applict
 Int 21 Fn C706  - Novell Netware - Transaction Tracking System - Set Applict
 Int 21 Fn C707  - Novell Netware - Transaction Tracking System - Get Workstn
 Int 21 Fn C708  - Novell Netware - Transaction Tracking System - Set Workstn
 Int 21 Fn C8  O - Novell Netware - Begin Logical File Locking
 Int 21 Fn C9  O - Novell Netware - End Logical File Locking
 Int 21 Fn CA  O - Novell Netware, Alloy Ntnx - Log/lock Personal File (fcb)
 Int 21 Fn CA15  - Virus - "piter" - ???
 Int 21 Fn CB  - Novell Netware - Synchronization Services - Lock File Set
 Int 21 Fn CB  - Virus - "milous" - Installation Check
 Int 21 Fn CB02  - Virus - "witcode" - Installation Check
 Int 21 Fn CC  O - Novell Netware, Alloy Ntnx - Release File (fcb)
 Int 21 Fn CC  - Virus - "westwood" - Installation Check
 Int 21 Fn CD  - Novell Netware - Synchronization Services - Release File Set
 Int 21 Fn CD  - Virus - "westwood" - ???
 Int 21 Fn CE  O - Novell Netware, Alloy Ntnx - Clear File (fcb)
 Int 21 Fn CF  - LANstep - ???
 Int 21 Fn CF  - Novell Netware - Synchronization Services - Clear File Set
 Int 21 Fn D0  - Novell Netware - Synchronization Services - Log Logical Reco
 Int 21 Fn D000  - Virus - "fellowship" - Installation Check
 Int 21 Fn D1  - Novell Netware - Synchronization Services - Lock Logical Rec
 Int 21 Fn D2  - Novell Netware - Synchronization Services - Release Logical
 Int 21 Fn D3  - Novell Netware - Synchronization Services - Release Logical
 Int 21 Fn D4  - Novell Netware - Synchronization Services - Clear Logical Re
 Int 21 Fn D5  - Novell Netware - Synchronization Services - Clear Logical Re
 Int 21 Fn D5  - Virus - "carfield" - ???
 Int 21 Fn D5AA  - Virus - "diamond-a", "diamond-b" - Installation Check
 Int 21 Fn D5AA  - Virus - "dir" - Installation Check
 Int 21 Fn D6  - Novell Netware - Workstation - End Of Job
 Int 21 Fn D7  - Novell Netware - Connection Services - System Logout
 Int 21 Fn D8  - Novell Netware, Banyan Vines - Allocate Resource
 Int 21 Fn D9  - Novell Netware, Banyan Vines - Deallocate Resource
 Int 21 Fn DA  - Novell Netware - Directory Services - Get Volume Info With N
 Int 21 Fn DADA  - Virus - "gotcha" - Installation Check
 Int 21 Fn DAFE  - Virus - "plovdiv 1.3" - Installation Check
 Int 21 Fn DB  - Novell Netware - Workstation - Get Number Of Local Drives
 Int 21 Fn DC  - Novell Netware - Connection Services - Get Connection Number
 Int 21 Fn DC  - PCmag Pcmanage/dcompres - Turn On/off
 Int 21 Fn DD  - Novell Netware - Workstation - Set Netware Error Mode
 Int 21 Fn DD  - Virus - "jerusalem"-family - Relocate Virus???
 Int 21 Fn DE  - Virus - "durban" - Installation Check
 Int 21 Fn DE  - Virus - "april 1st Exe" - ???
 Int 21 Fn DE  - Novell Netware - Message Services - Set Broadcast Mode
 Int 21 Fn DE  - Novell Netware - Message Services - Get Broadcast Mode
 Int 21 Fn DE  - Novell Netware - Shell Timer Interrupt Checks
 Int 21 Fn DEDE  - Virus - "brothers" - Installation Check
 Int 21 Fn DF  - Novell Netware - Print Services - Start Lpt Capture
 Int 21 Fn DF  - Novell Netware - Print Services - End Lpt Capture
 Int 21 Fn DF  - Novell Netware - Print Services - Cancel Lpt Capture
 Int 21 Fn DF  - Novell Netware - Print Services - Flush Lpt Capture
 Int 21 Fn DF  - Novell Netware - Print Services - Start Specific Lpt Capture
 Int 21 Fn DF  - Novell Netware - Print Services - End Specific Lpt Capture
 Int 21 Fn DF  - Novell Netware - Print Services - Cancel Specific Lpt Captur
 Int 21 Fn DF  - Novell Netware - Print Services - Flush Specific Lpt Capture
 Int 21 Fn DF00  U - Software Carousel - Installation Check
 Int 21 Fn DF01  - Software Carousel - Switch To Another Task
 Int 21 Fn DF02  - Software Carousel - Kill Program In Memory Partition
 Int 21 Fn DF03  - Software Carousel - Get Partition Size And Program Status
 Int 21 Fn DF04  - Software Carousel - Get Partition Name
 Int 21 Fn DF05  - Software Carousel - Change Partition Size
 Int 21 Fn DF06  - Software Carousel - Change Partition Name
 Int 21 Fn DF07  - Software Carousel - Send Command To Memory Section
 Int 21 Fn DF08  - Software Carousel - Selectively Enable/disable Menu And Sw
 Int 21 Fn DF09  - Software Carousel - Boot The System
 Int 21 Fn DF0A  - Software Carousel - Get Memory Size/partition Number Of Cu
 Int 21 Fn DF0B  - Software Carousel - Set Task Switch Callback
 Int 21 Fn DF0C  - Software Carousel - Enable DOS-call Safety Notification
 Int 21 Fn E0  - Digital Research DOS Plus - Call Bdos
 Int 21 Fn E0  - OS/286, Os/386 - Initialize Real Procedure
 Int 21 Fn E0  - Doubledos - Menu Control
 Int 21 Fn E0  - Virus - "jerusalem", "armagedon" - Installation Check
 Int 21 Fn E0  - Novell Netware, Alloy Ntnx - Print Spooling
 Int 21 Fn E0  - Novell Netware - Print Services - Get Printer Status
 Int 21 Fn E0  - Novell Netware - Print Services - Specify Capture File
 Int 21 Fn E00F  - Virus - "8-tunes" - Installation Check
 Int 21 Fn E1  - OS/286, Os/386 - Issue Real Procedure Call
 Int 21 Fn E1  - Doubledos - Clear Keyboard Buffer For Current Job
 Int 21 Fn E1  - Virus - "mendoza", "fu Manchu" - Installation Check
 Int 21 Fn E1  - Novell Netware - Message Services - Send Broadcast Message
 Int 21 Fn E1  - Novell Netware - Message Services - Get Broadcast Message
 Int 21 Fn E1  - Novell Netware - Message Services - Enable/disable Broadcast
 Int 21 Fn E1  - Novell Netware - Message Services - Send Personal Message
 Int 21 Fn E1  - Novell Netware - Message Services - Get Personal Message
 Int 21 Fn E1  - Novell Netware - Message Services - Open Message Pipe
 Int 21 Fn E1  - Novell Netware - Message Services - Close Message Pipe
 Int 21 Fn E1  - Novell Netware - Message Services - Check Pipe Status
 Int 21 Fn E1  - Novell Netware - Message Services - Broadcast To Console
 Int 21 Fn E2  - OS/286, Os/386 - Set Real Procedure Signal Handler
 Int 21 Fn E2  - Doubledos - Send Character To Keyboard Buffer Of Other Job
 Int 21 Fn E2  - Novell Netware - Directory Services - Set Directory Handle
 Int 21 Fn E2  - Novell Netware - Directory Services - Get Directory Path
 Int 21 Fn E2  - Novell Netware - Directory Services - Scan Directory Informa
 Int 21 Fn E2  - Novell Netware - Directory Services - Get Effective Director
 Int 21 Fn E2  - Novell Netware - Directory Services - Modify Maximum Rights
 Int 21 Fn E2  - Novell Netware - Directory Services - Get Volume Number
 Int 21 Fn E2  - Novell Netware - Directory Services - Get Volume Name
 Int 21 Fn E2  - Novell Netware - Directory Services - Create Directory
 Int 21 Fn E2  - Novell Netware - Directory Services - Delete Directory
 Int 21 Fn E2  - Novell Netware - Directory Services - Scan Directory For Tru
 Int 21 Fn E2  - Novell Netware - Directory Services - Add Trustee To Directo
 Int 21 Fn E2  - Novell Netware - Directory Services - Delete Trustee From Di
 Int 21 Fn E2  - Novell Netware - Directory Services - Rename Directory
 Int 21 Fn E2  - Novell Netware - File Services - Purge Erased Files
 Int 21 Fn E2  - Novell Netware - File Services - Restore Erased File
 Int 21 Fn E2  - Novell Netware - Directory Services - Alloc Permanent Direct
 Int 21 Fn E2  - Novell Netware - Directory Services - Alloc Temporary Direct
 Int 21 Fn E2  - Novell Netware - Directory Services - Deallocate Directory H
 Int 21 Fn E2  - Novell Netware - Directory Services - Get Volume Info With H
 Int 21 Fn E2  u - Novell Netware - Directory Services - Alloc Special Temp D
 Int 21 Fn E2  - Novell Netware - Directory Services - Save Directory Handle
 Int 21 Fn E2  - Novell Netware - Directory Services - Restore Directory Hand
 Int 21 Fn E2  - Novell Netware - Directory Services - Set Directory Informat
 Int 21 Fn E2  - Novell Netware - File Server - Get Path From Directory Entry
 Int 21 Fn E3  - OS/286, Os/386 - Issue Real Interrupt
 Int 21 Fn E3  - Doubledos - Add Character To Keyboard Buffer Of Current Job
 Int 21 Fn E3  - Novell Netware - Connection Control
 Int 21 Fn E3  - Novell Netware - Connection Services - Enter Login Area
 Int 21 Fn E3  U - Novell Netware - Verify Network Serial Number
 Int 21 Fn E3  - Novell Netware - Message Services - Log Network Message
 Int 21 Fn E3  - Novell Netware - File Server - Get Disk Utilization
 Int 21 Fn E3  - Novell Netware - File Services - Scan File Information
 Int 21 Fn E3  - Novell Netware - File Services - Set File Information
 Int 21 Fn E3  - Novell Netware - File Server - Get File Server Information
 Int 21 Fn E3  - Novell Netware - Get Network Serial Number
 Int 21 Fn E3  - Novell Netware - Connection Services - Get Internet Address
 Int 21 Fn E3  - Novell Netware - Connection Services - Login To File Server
 Int 21 Fn E3  - Novell Netware - Connection Services - Get Object Connection
 Int 21 Fn E3  - Novell Netware - Connection Services - Get Connection Inform
 Int 21 Fn E3  - Novell Netware - Bindery Services - Create Bindery Object
 Int 21 Fn E3  - Novell Netware - Bindery Services - Delete Bindery Object
 Int 21 Fn E3  - Novell Netware - Bindery Services - Rename Bindery Object
 Int 21 Fn E3  - Novell Netware - Bindery Services - Get Bindery Object Id
 Int 21 Fn E3  - Novell Netware - Bindery Services - Get Bindery Object Name
 Int 21 Fn E3  - Novell Netware - Bindery Services - Scan Bindery Object
 Int 21 Fn E3  - Novell Netware - Bindery Services - Change Bindery Object Se
 Int 21 Fn E3  - Novell Netware - Bindery Services - Create Property
 Int 21 Fn E3  - Novell Netware - Bindery Services - Delete Property
 Int 21 Fn E3  - Novell Netware - Bindery Services - Change Property Security
 Int 21 Fn E3  - Novell Netware - Bindery Services - Scan Property
 Int 21 Fn E3  - Novell Netware - Bindery Services - Read Property Value