09-25-14 16:48 Holger Granholm wrote to Ed Vance about Re: SyQuest EZFlyer 230   
      
    HG> @MSGID: <54269407.13287.windowsa@capcity2.synchro.net>   
    HG> In a message dated 09-24-14, Ed Vance said to Holger Granholm:   
      
    HG> GA Ed,   
   GM Holger,   
   -snip-   
    EV> I was looking at the BACK UP set of carts and it looks like I was   
    EV> using the Back Up program that is in MS-DOS 5.0 or in IBM PC-DOS 7.0   
    EV> on that computer.   
      
    HG> If the .sys files in the root directory are io.sys and   
    HG> msdos.sys you have a MS-DOS 5 system. The .sys files for PC-DOS   
    HG> are named ibmbio.sys and ibmdos.sys. If you have the original   
    HG> PC-DOS 7 version they are dated 1994 and if you do have the   
    HG> updated version they are dated 1998.   
      
   Here is what I found in saved copies of the DOS Directory in the 486:   
      
   IBMDOS.COM 11/17/1994   
   IBMBIO.COM 6/1/1998   
   COMMAND.COM 6/1/1998   
      
   Thanks for the info.   
   73   
      
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