Int 31  - Overwritten By Cp/m Jump Instruction In Int 30
 Int 31  - Virus - "vacsina" Series - Installation Check (not A Vector!)
 Int 31 Fn 0000  P - DPMI 0.9+ - Allocate Ldt Descriptors
 Int 31 Fn 0001  P - DPMI 0.9+ - Free Ldt Descriptor
 Int 31 Fn 0002  P - DPMI 0.9+ - Segment To Descriptor
 Int 31 Fn 0003  P - DPMI 0.9+ - Get Next Selector Increment Value
 Int 31 Fn 0004  P - DPMI 0.9+ - Lock Selector
 Int 31 Fn 0005  P - DPMI 0.9+ - Unlock Selector
 Int 31 Fn 0006  P - DPMI 0.9+ - Get Segment Base Address
 Int 31 Fn 0007  P - DPMI 0.9+ - Set Segment Base Address
 Int 31 Fn 0008  P - DPMI 0.9+ - Set Segment LIMit
 Int 31 Fn 0009  P - DPMI 0.9+ - Set Descriptor Access Rights
 Int 31 Fn 000A  P - DPMI 0.9+ - Create Alias Descriptor
 Int 31 Fn 000B  P - DPMI 0.9+ - Get Descriptor
 Int 31 Fn 000C  P - DPMI 0.9+ - Set Descriptor
 Int 31 Fn 000D  P - DPMI 0.9+ - Allocate Specific Ldt Descriptor
 Int 31 Fn 000E  P - DPMI 1.0+ - Get Multiple Descriptors
 Int 31 Fn 000F  P - DPMI 1.0+ - Set Multiple Descriptors
 Int 31 Fn 0100  P - DPMI 0.9+ - Allocate DOS Memory Block
 Int 31 Fn 0101  P - DPMI 0.9+ - Free DOS Memory Block
 Int 31 Fn 0102  P - DPMI 0.9+ - Resize DOS Memory Block
 Int 31 Fn 0200  P - DPMI 0.9+ - Get Real Mode Interrupt Vector
 Int 31 Fn 0201  P - DPMI 0.9+ - Set Real Mode Interrupt Vector
 Int 31 Fn 0202  P - DPMI 0.9+ - Get Processor Exception Handler Vector
 Int 31 Fn 0203  P - DPMI 0.9+ - Set Processor Exception Handler Vector
 Int 31 Fn 0204  P - DPMI 0.9+ - Get Protected Mode Interrupt Vector
 Int 31 Fn 0205  P - DPMI 0.9+ - Set Protected Mode Interrupt Vector
 Int 31 Fn 0210  P - DPMI 1.0+ - Get Protected Mode Extended Processor Except
 Int 31 Fn 0211  P - DPMI 1.0+ - Get Real Mode Extended Processor Exception H
 Int 31 Fn 0212  P - DPMI 1.0+ - Set Protected Mode Extended Processor Except
 Int 31 Fn 0213  P - DPMI 1.0+ - Set Real Mode Extended Processor Exception H
 Int 31 Fn 0300  P - DPMI 0.9+ - Simulate Real Mode Interrupt
 Int 31 Fn 0301  P - DPMI 0.9+ - Call Real Mode Procedure With Far Return Fra
 Int 31 Fn 0302  P - DPMI 0.9+ - Call Real Mode Procedure With Iret Frame
 Int 31 Fn 0303  P - DPMI 0.9+ - Allocate Real Mode Callback Address
 Int 31 Fn 0304  P - DPMI 0.9+ - Free Real Mode Callback Address
 Int 31 Fn 0305  P - DPMI 0.9+ - Get State Save/restore Addresses
 Int 31 Fn 0306  P - DPMI 0.9+ - Get Raw Mode Switch Addresses
 Int 31 Fn 0400  P - DPMI 0.9+ - Get Dpmi Version
 Int 31 Fn 0401  P - DPMI 1.0+ - Get Dpmi Capabilities
 Int 31 Fn 0500  P - DPMI 0.9+ - Get Free Memory Information
 Int 31 Fn 0501  P - DPMI 0.9+ - Allocate Memory Block
 Int 31 Fn 0502  P - DPMI 0.9+ - Free Memory Block
 Int 31 Fn 0503  P - DPMI 0.9+ - Resize Memory Block
 Int 31 Fn 0504  P - DPMI 1.0+ - Allocate Linear Memory Block
 Int 31 Fn 0505  P - DPMI 1.0+ - Resize Linear Memory Block
 Int 31 Fn 0506  P - DPMI 1.0+ - Get Page Attributes
 Int 31 Fn 0507  P - DPMI 1.0+ - Modify Page Attributes
 Int 31 Fn 0508  P - DPMI 1.0+ - Map Device In Memory Block
 Int 31 Fn 0509  P - DPMI 1.0+ - Map Conventional Memory In Memory Block
 Int 31 Fn 050A  P - DPMI 1.0+ - Get Memory Block Size And Base
 Int 31 Fn 050B  P - DPMI 1.0+ - Get Memory Information
 Int 31 Fn 0600  P - DPMI 0.9+ - Lock Linear Region
 Int 31 Fn 0601  P - DPMI 0.9+ - Unlock Linear Region
 Int 31 Fn 0602  P - DPMI 0.9+ - Mark Real Mode Region As Pageable
 Int 31 Fn 0603  P - DPMI 0.9+ - Relock Real Mode Region
 Int 31 Fn 0604  P - DPMI 0.9+ - Get Page Size
 Int 31 Fn 0700  Pu - DPMI 0.9+ - Mark Pages As Paging Candidates
 Int 31 Fn 0701  Pu - DPMI 0.9+ - Discard Pages
 Int 31 Fn 0702  P - DPMI 0.9+ - Mark Page As Demand Paging Candidate
 Int 31 Fn 0703  P - DPMI 0.9+ - Discard Page Contents
 Int 31 Fn 0800  P - DPMI 0.9+ - Physical Address Mapping
 Int 31 Fn 0801  P - DPMI 1.0+ - Free Physical Address Mapping
 Int 31 Fn 0900  P - DPMI 0.9+ - Get And Disable Virtual Interrupt State
 Int 31 Fn 0901  P - DPMI 0.9+ - Get And Enable Virtual Interrupt State
 Int 31 Fn 0902  P - DPMI 0.9+ - Get Virtual Interrupt State
 Int 31 Fn 0A00  P - DPMI 0.9+ - Get Vendor Specific API Entry Point
 Int 31 Fn 0B00  P - DPMI 0.9+ - Set Debug Watchpoint
 Int 31 Fn 0B01  P - DPMI 0.9+ - Clear Debug Watchpoint
 Int 31 Fn 0B02  P - DPMI 0.9+ - Get State Of Debug Watchpoint
 Int 31 Fn 0B03  P - DPMI 0.9+ - Reset Debug Watchpoint
 Int 31 Fn 0C00  P - DPMI 1.0+ - Install Resident Handler Init Callback
 Int 31 Fn 0C01  P - DPMI 1.0+ - Terminate And Stay Resident
 Int 31 Fn 0D00  P - DPMI 1.0+ - Allocate Shared Memory
 Int 31 Fn 0D01  P - DPMI 1.0+ - Free Shared Memory
 Int 31 Fn 0D02  P - DPMI 1.0+ - Serialize Shared Memory
 Int 31 Fn 0D03  P - DPMI 1.0+ - Free Serialization On Shared Memory
 Int 31 Fn 0E00  P - DPMI 1.0+ - Get Coprocessor Status
 Int 31 Fn 0E01  P - DPMI 1.0+ - Set Emulation
 Int 31 Fn 57  - Netroom3 DPMI.exe V3.00 - ???
 Int 31 Fn 5702  - Netroom3 DPMI.exe V3.00 - Switch To Protected Mode