China DOS Union

1. Does pccache do exactly the same thing as smartdrv? Are there any differences?
2. After loading mousclip, how do I use it? How do I copy and paste?
3. What is the difference between SHELL=A:\COMMAND.COM and SET COMSPEC=A:\COMMAND.COM?
4. Can IF %CONFIG%#==M6# be written as IF %CONFIG%==M6
5. Also, if there is no more space in umb, and I use LH to load a program, what will happen?

The following is quoted from hunome's post at 2003-5-22 18:30:51:
3. What is the difference between SHELL=A:\COMMAND.COM and SET COMSPEC=A:\COMMAND.COM?
SHELL=A:\COMMAND.COM is used in config.sys to specify the shell
while SET COMSPEC=A:\COMMAND.COM is used to specify the shell for reload

The following is quoted from hunome's post at 2003-5-22 18:30:51:
4. Can IF %CONFIG%#==M6# be written as IF %CONFIG%==M6 
No, because the if command needs an ending symbol (terminator)

The following is quoted from hunome's post at 2003-5-22 18:30:51:
5. Also, if there is no more space in umb, and I use LH to load a program, what will happen?
It will be loaded into Conventional Memory

Of course PC-CACHE and SMARTDRV can't possibly be exactly the same! PC-CACHE is quite a bit better to use than SMARTDRV.

Then if installing 2000 under DOS, not loading smartdrv but loading pccache should also be okay, right.

SHELL=A:\COMMAND.COM is used in config.sys to specify the shell
while SET COMSPEC=A:\COMMAND.COM is used to specify the shell for reload
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Does that mean after the latter statement, the former one becomes invalid?

Yes

Although PC-CACHE has quite a few advantages compared with SMARTDRV, it also has one drawback, and that is that it does not support CD caching.