INT 14 - VIDEO FOSSIL - RETURN VFOSSIL INFORMATION
        AX = 8100h
        ES:DI -> buffer for VFOSSIL information (see below)
Return: AX = 1954h if installed
SeeAlso: AX=8101h

Format of VFOSSIL information:
Offset  Size    Description
 00h    WORD    size of information in bytes, including this field
 02h    WORD    VFOSSIL major version
 04h    WORD    VFOSSIL revision level
 06h    WORD    highest VFOSSIL application function supported