China DOS Union

Administrator wenjier, I downloaded your cracked ROM-DOS boot disk. Booting from the floppy works normally, but after doing sys to the hard disk, it says it's an unregistered version. The crack doesn't seem to be complete, does it?
Also, if I sys the MSDOS 7.1 boot disk you made to the hard disk, installing and using Win3.x works normally, but once I exit back to DOS, using the dir command can't show the files, there's only garbled text. After doing cd\ and then cd windows, it returns to normal. What's going on?
Thanks, brother.

The IBMBIO.COM in ROM-DOS has already been completely cracked, but the system files transferred with the SYS command have not been modified. The solution is actually very simple: just use the IBMBIO.COM on the floppy to replace the one on the hard disk.

As for the problem of using Win3.x under MS-DOS 7.10, you can just enter the command C:\WINDOWS\WIN directly at C:\ to start Windows.

Thanks. But as for the issue of using Win3.x under MS-DOS 7.10, it's mainly because some software needs to restart win31, and right now I can only restart it manually. In particular, Win31's 386 enhanced mode can't use a permanent swap file, only a temporary one. That causes a loss of performance.

When I use Win3.x under MS-DOS 7.10, when a program needs to restart, in most cases I actually haven't run into this problem!. As for the issue of "not being able to use a permanent swap file", the solution is also very simple: when creating the permanent swap file, just LOCK the drive for the permanent swap file with the LOCK command first (for example: LOCK E, then enter Win3.x, and you'll be able to create that swap file normally. After that, you can just use it normally.