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Run and RunOnce Registry Keys

Run and RunOnce registry keys cause programs to run each time that a user logs on. The data value for a key is a command line. Register programs to run by adding entries of the form description-string=commandline. You can write multiple entries under a key. If more than one program is registered under any particular key, the order in which those programs run is indeterminate.

Windows NT 4.0, Windows 2000, Windows XP and Windows Server 2003 family registry includes the following four keys:

• HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
• HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
• HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
• HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce

Windows 95/98/ME registry includes the following seven keys:

• HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
• HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
• HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
• HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
• HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunServices
• HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunServicesOnce
• HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce\Setup

By default, the value of a RunOnce key is deleted before the command line is run. You can prefix a RunOnce value name with an exclamation point (!) to defer deletion of the value until after the command runs. Without the exclamation point prefix, if the RunOnce operation fails the associated program will not be asked to run the next time you start the computer.
By default, these keys are ignored when the computer is started in Safe Mode. Starting with Windows NT 4.0 SP3, the value name of RunOnce keys can be prefixed with an asterisk (*) to force the program to run even in Safe mode.

A program run from any of these keys should not write to the key during its execution because this will interfere with the execution of other programs registered under the key. Applications should use the RunOnce or RunOnceServices keys only for transient conditions, such as to complete application setup. An application must not continually recreate entries under RunOnce or RunOnceServices because this will interfere with Windows Setup.

Run and RunOnce keys are run each time a new user logs in. RunServices and RunServicesOnce are run in the background when the logon dialog box first appears or at this stage of the boot process if there is no logon. These keys are for background services such as remote registry service and are run only once per boot. The Setup key is run only by Setup's first-boot activities, or after you use the Add/Remove Programs Wizard. This key displays the progress dialog box as the keys are run one at a time. For the Setup key, the name of the value is the name that is displayed in the dialog box.

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G:\dev >at /?
The AT command schedules commands and programs to run on a computer at
a specified time and date. The Schedule service must be running to use
the AT command.

AT [\\computername] [ [id] [/DELETE] | /DELETE [/YES]]
AT [\\computername] time [/INTERACTIVE]
    [ /EVERY:date[,...] | /NEXT:date[,...]] "command"

\\computername     Specifies a remote computer. Commands are scheduled on the
                   local computer if this parameter is omitted.
id                 Is an identification number assigned to a scheduled
                   command.
/delete            Cancels a scheduled command. If id is omitted, all the
                   scheduled commands on the computer are canceled.
/yes               Used with cancel all jobs command when no further
                   confirmation is desired.
time               Specifies the time when command is to run.
/interactive       Allows the job to interact with the desktop of the user
                   who is logged on at the time the job runs.
/every:date[,...]  Runs the command on each specified day(s) of the week or
                   month. If date is omitted, the current day of the month
                   is assumed.
/next:date[,...]   Runs the specified command on the next occurrence of the
                   day (for example, next Thursday).  If date is omitted, the
                   current day of the month is assumed.
"command"          Is the Windows NT command, or batch program to be run.

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Requires the file JT.EXE, which is part of the Microsoft Windows 2000 Resource Kit Supplement.

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These are WTS (NT4.0) servers, so how do I schedule a task for startup?

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