----- Original Message -----
From: "Phydeaux" <Phydeaux_435@erg_nospam_msinet.net>
Newsgroups: microsoft.public.windowsxp.customize
Sent: Friday, November 23, 2007 21:18
Subject: Re: Set App Priority
cmd.exe /c start /high notepad.exe
This would start notepad with high priority.
Starts a new instance of the Windows XP command interpreter
CMD [/A | /U] [/Q] [/D] [/E:ON | /E:OFF] [/F:ON | /F:OFF] [/V:ON |
/V:OFF] [[/S] [/C | /K] string]
/C Carries out the command specified by string and then
terminates /K Carries out the command specified by string but
remains /S Modifies the treatment of string after /C or /K (see
below) /Q Turns echo off
/D Disable execution of AutoRun commands from registry (see
below) /A Causes the output of internal commands to a pipe or
file to be ANSI /U Causes the output of internal commands to a
pipe or file to be Unicode
/T:fg Sets the foreground/background colors (see COLOR /? for more
info) /E:ON Enable command extensions (see below)
/E:OFF Disable command extensions (see below)
/F:ON Enable file and directory name completion characters (see
below) /F:OFF Disable file and directory name completion characters
(see below) /V:ON Enable delayed environment variable expansion
using ! as the delimiter. For example, /V:ON would allow !var!
to expand the variable var at execution time. The var syntax
expands variables at input time, which is quite a different
thing when inside of a FOR loop.
/V:OFF Disable delayed environment expansion.
Note that multiple commands separated by the command separator '&&'
are accepted for string if surrounded by quotes. Also, for
compatibility reasons, /X is the same as /E:ON, /Y is the same as
/E:OFF and /R is the same as /C. Any other switches are ignored.
If /C or /K is specified, then the remainder of the command line after
the switch is processed as a command line, where the following logic
is used to process quote (") characters:
1. If all of the following conditions are met, then quote
characters on the command line are preserved:
- no /S switch
- exactly two quote characters
- no special characters between the two quote characters,
where special is one of: &<>()@^|
- there are one or more whitespace characters between the
the two quote characters
- the string between the two quote characters is the name
of an executable file.
2. Otherwise, old behavior is to see if the first character is
a quote character and if so, strip the leading character and
remove the last quote character on the command line, preserving
any text after the last quote character.
If /D was NOT specified on the command line, then when CMD.EXE
starts, it looks for the following REG_SZ/REG_EXPAND_SZ registry
variables, and if either or both are present, they are executed first.
HKEY_LOCAL_MACHINE\Software\Microsoft\Command Processor\AutoRun
and/or
HKEY_CURRENT_USER\Software\Microsoft\Command Processor\AutoRun
Command Extensions are enabled by default. You may also disable
extensions for a particular invocation by using the /E:OFF switch. You can
enable or disable extensions for all invocations of CMD.EXE on a
machine and/or user logon session by setting either or both of the
following REG_DWORD values in the registry using REGEDT32.EXE:
HKEY_LOCAL_MACHINE\Software\Microsoft\Command
Processor\EnableExtensions
and/or
HKEY_CURRENT_USER\Software\Microsoft\Command
Processor\EnableExtensions
to either 0x1 or 0x0. The user specific setting takes precedence over
the machine setting. The command line switches take precedence over
the registry settings.
The command extensions involve changes and/or additions to the
following commands:
DEL or ERASE
COLOR
CD or CHDIR
MD or MKDIR
PROMPT
PUSHD
POPD
SET
SETLOCAL
ENDLOCAL
IF
FOR
CALL
SHIFT
GOTO
START (also includes changes to external command invocation)
ASSOC
FTYPE
To get specific details, type commandname /? to view the specifics.
Delayed environment variable expansion is NOT enabled by default. You
can enable or disable delayed environment variable expansion for a
particular invocation of CMD.EXE with the /V:ON or /V:OFF switch. You
can enable or disable completion for all invocations of CMD.EXE on a
machine and/or user logon session by setting either or both of the
following REG_DWORD values in the registry using REGEDT32.EXE:
HKEY_LOCAL_MACHINE\Software\Microsoft\Command
Processor\DelayedExpansion
and/or
HKEY_CURRENT_USER\Software\Microsoft\Command
Processor\DelayedExpansion
to either 0x1 or 0x0. The user specific setting takes precedence over
the machine setting. The command line switches take precedence over
the registry settings.
If delayed environment variable expansion is enabled, then the
exclamation character can be used to substitute the value of an
environment variable at execution time.
File and Directory name completion is NOT enabled by default. You can
enable or disable file name completion for a particular invocation of
CMD.EXE with the /F:ON or /F:OFF switch. You can enable or disable
completion for all invocations of CMD.EXE on a machine and/or user
logon session by setting either or both of the following REG_DWORD
values in the registry using REGEDT32.EXE:
HKEY_LOCAL_MACHINE\Software\Microsoft\Command
Processor\CompletionChar
HKEY_LOCAL_MACHINE\Software\Microsoft\Command Processor\PathCompletionChar
and/or
HKEY_CURRENT_USER\Software\Microsoft\Command
Processor\CompletionChar
HKEY_CURRENT_USER\Software\Microsoft\Command Processor\PathCompletionChar
with the hex value of a control character to use for a particular
function (e.g. 0x4 is Ctrl-D and 0x6 is Ctrl-F). The user specific
settings take precedence over the machine settings. The command line
switches take precedence over the registry settings.
If completion is enabled with the /F:ON switch, the two control
characters used are Ctrl-D for directory name completion and Ctrl-F
for file name completion. To disable a particular completion
character in the registry, use the value for space (0x20) as it is not a
valid
control character.
Completion is invoked when you type either of the two control
characters. The completion function takes the path string to the left
of the cursor appends a wild card character to it if none is already
present and builds up a list of paths that match. It then displays
the first matching path. If no paths match, it just beeps and leaves
the display alone. Thereafter, repeated pressing of the same control
character will cycle through the list of matching paths. Pressing the
Shift key with the control character will move through the list
backwards. If you edit the line in any way and press the control
character again, the saved list of matching paths is discarded and a
new one generated. The same occurs if you switch between file and
directory name completion. The only difference between the two
control characters is the file completion character matches both file and
directory
names, while the directory completion character only matches
directory names. If file completion is used on any of the built in
directory commands
(CD, MD or RD) then directory completion is assumed.
The completion code deals correctly with file names that contain
spaces or other special characters by placing quotes around the matching
path. Also, if you back up, then invoke completion from within a
line, the text to the right of the cursor at the point completion was
invoked is
discarded.
The special characters that require quotes are:
<space>
&()[]{}^=;!'+,`~
