Hello Eric, > I ran your SHARE in DOSEMU. It indeed insists that the > DOS version is 6.22, and it does something bad:
> 0439:0adb B452 mov ah,0x52 > 0439:0add CD21 int 0x21 > 0439:0adf 26C6060303FF mov es:[0303],0xff > 0439:0ae5 FA cli > 0439:0ae6 BE0C0A mov si,0a0c > 0439:0ae9 BF9000 mov di,0090 > 0439:0aec B91E00 mov cx,001e > 0439:0aef F3A5 repe movsw > 0439:0af1 26833E440000 cmp es:[0044],0000 > 0439:0af7 754F jne 0b48 > ... > In other words, it asks DOS for the location of some > internal data structure, then ignores the exact > location, and uses the memory block which contains > the data structure to as a target for overwriting > 1 plus 60 bytes of data. In short, your SHARE modifies > the DOS kernel, because it believes that it knows > what it is doing. This will work with no other kernel > except the MS DOS 6.22 one... it's not THAT bad. it's the List of List, which is sort of documented undocumented. > I wonder why the author > of that SHARE made it so limited. I mean it will not > even work with any other version of MS DOS... the LoL is pretty stable, so this has a chance to run on more MSDOS versions, but it's still pretty bad Tom ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
