Thủ thuật XP

VC Version 4.01 shareware
Copyright (C) Vsevolod V. Volkov 1991-1995



Minimal requirements:
Computer. . . . . . . . IBM PC or BIOS-compatible
Operation system. . . . DOS 3.20 or higher
Free RAM. . . . . . . . about 155 Kb


Implementation notes:
- all file and memory management operations implemented on
DOS level via Int 21h
- keyboard polling implemented on BIOS level via Int 16h
- I/O ports access: only for snow elimination on CGA, only
port 3DAh and only if this port is detected


Some notes and recommendations:

1. The Volkov Commander allows you to select, copy, move and
delete directories (including all contained subdirectories)
as well as ordinary files.

2. You can split and merge files while copying. What you have
to do for splitting - if you see following message while
copying file to diskette:

ÉÍÍÍÍÍÍÍÍÍÍÍÍÍ Copy ÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»
º There isn`t enough room to copy º
º filename to º
º D:filename º
º Abort Continue º
ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍͼ

change diskette and select "Continue". First part of splited
file will have such date and time as had source file, other
parts will have current date and time.

How to merge two files? You have to copy second part of
splitted file to directory where first part resides. You
will see following message

ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ Copy ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»
º The following file exists º
º D:filename º
º Do you wish to write over the old file? º
º Overwrite All aPpend Skip º
ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍͼ

- choose "Append".

3. Pressing Alt-F10 after F5 or F6 (Copy or Rename commands)
pops up panel with directory tree of drive, specified in
destination path - you can choose then right place to copy
to. Pressing F10 invoke directory tree of current (source)
disk.

4. Group Selection (Grey +) and Group Inversion (Grey *) acts
upon files only, while Unselection (Grey -) acts on both
files and directories.

5. After completion of operation upon selected group of files
you can restore selection using Restore Selection (^M)
command.

6. You can specify a name of DOS command, executable or batch
file in command line as a parameter for VC which will be
executed automatically when the Volkov Commander starts. For
example:

VC startup.bat

VC will start up and then run batch file startup.bat, which
may contain DOS commands and resident programs.

7. There are two options of residing VC in RAM:

1. "Small" mode - The Commander deallocates memory before
execution of each DOS command or application. When
program started from VC is terminated, file VC.COM is
reloaded from path it was originally started. In this
mode only about 12.5 Kbytes of The Commander resides in
memory when programs run.

2. Full-resident mode - VC is totally allocated in the RAM
(about 76 Kb). While in full-resident mode, executable
file VC.COM is loaded only once and does not need later.
This mode is faster.

Small mode is selected if `Memory Allocation` option checked
in pull-down menu Options. It is possible while being in one
of this modes to launch applications in opposite execution
mode without using menu: you just have to press Shift-Enter
instead of Enter. The status of Shift key is also examined
when starting programs from User Menu (F2) or History
(Alt-F8).

Mode choice recommendations:

1. If you have more than 65 Kbytes of high memory (UMB)
free - it would be preferable to load VC into UMB using
command LH VC under MS-DOS 5.0, HILOAD VC under DR-DOS
6.0. In such case it would be better to utilize "maximal
mode" for faster operating.

2. If you have no UMBs in your system or UMB size is
insufficient - "small mode" will be optimal if you run VC
from hard disk. If you have RAM-disk it will be even
better to copy VC.COM to RAM-disk and start from it. For
example, it could be done in such a way:

COPY C:VCvc.