INT 7F - Alloy NetWare Support Kit (ANSK) v2.2+ - INSTALLATION CHECK
Note:   a program may determine that it is running on an ANSK Slave by checking
          the five bytes at F000h:0000h for the ASCIZ signature "ANSK"; this
          address is RAM, and should not be written.  However, the above check
          will not work on Slaves with <1MB RAM or those using the SLIM.SYS
          device driver