/FILES=location

   By default, the appropriate image and symbol files are read
   from SYS$SYSTEM:.  If you are diagnosing a problem using a
   dump from a different set of files, you may optionally
   specify the location of the collection of matching files.

   Note that the following files must be in that location:

     TCPIP$INTERNET_SERVICES.STB
     TCPIP$INETACP.STB
     TCPIP$NET_GLOBALS.STB
     TCPIP$NFS_GLOBALS.STB    (/NFS only)
     TCPIP$NFS_SERVICES.STB   (/NFS only)
     TCPIP$PROXY_GLOBALS.STB  (/PROXY only)
     TCPIP$PROXY_SERVICES.STB (/PROXY only)
     PWIPDRIVER.STB           (/PWIP only)
     TCPIP$PWIP_GLOBALS.STB   (/PWIP only)
     TCPIP$TNDRIVER.STB       (/TELNET only)
     TCPIP$TN_GLOBALS.STB     (/TELNET only)