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Environmental and System Variables |
| Environment
variables are strings that contain information
such as drive, path, or file name. Environment
variables control the behavior of various programs.
Any user can add, modify, or remove a user environment
variable. However, only an administrator can
add, modify, or remove a system environment
variable. |
| Where
to start.. |
Environment Variables in Windows NT/2000
Microsoft Knowledge Base Article: 100843 - Environment
Variables in Windows NT/2000. There are three levels
of environment variables in Windows NT; the system
environment variables, the user environment variables,
and the environment variables that are set in the
AUTOEXEC.BAT file. There are also some predefined
environment variables that are set when the user
logs on. This article discusses the following topics:
System environment variables, User environment variables,
AUTOEXEC.BAT environment variables, how environment
variables are set, how the path is built, and changing
user environment variables using control panel.
HOW TO: Create System
Variables in Windows 2000
Microsoft Knowledge Base Article: 311843 - This
step-by-step article describes how to create system
variables and how to view system variable information
in a Windows 2000 environment. A member of the
administrators group will complete all procedures.
Managing NT Environment Variables
NT Environment Variables Environment variables
on an NT machine hold a wealth of useful information
that administrators can access to make logon scripts
and other scripts automate daily tasks. NT has
two kinds of environment variables: system and
user. Examples of static user variables are path,
TEMP, and TMP. The HKEY_CURRENT_USER\Environment
Registry key stores static user variables. Source:
Windows 2000 Magazine (June 1999) |
| Misc.. |
| How to Specify Additional
Environment Space under Windows NT/2000
Microsoft Knowledge Base Article: 158141 - This
article explains how to specify additional space
for environment variables. This can be useful
for systems with extremely long path statements
in both the system and the Autoexec.bat file.
How to Use %LOGONSERVER%
to Distribute User Profiles
Microsoft Knowledge Base Article: 141714 - If
you want to specify a domain server that validates
a user logon, use the environment variable %LOGONSERVER%
in a PATH statement. This article describes how
you can use %LOGONSERVER% to distribute user profiles.
%LOGONSERVER% Variable
not Available After Logon Script
Microsoft Knowledge Base Article: 183495 - When
a logon script is run, the LOGONSERVER environment
variable is only available while the logon script
runs. After the logon script finishes, the LOGONSERVER
environment variable is no longer available to
other running processes.
%HOMEPATH% and %HOMESHARE%
Variables Are Resolved Incorrectly
Microsoft Knowledge Base Article: 236813 - You
can use Microsoft Distributed File System (DFS)
to map drives directly to folders and subfolders
in a DFS share. If your home folder is on a DFS
share, the %HOMEDRIVE% variable is mapped only
to the DFS root and not to the complete path
%UserFirstName% and
%UserLastName% Variables Are Not Resolved in Remote
Installation Services Template
Microsoft Knowledge Base Article: 244964 - When
a user logs on using the Client Installation Wizard
(CIW), the %UserFirstName% and %UserLastName%
variables may not be resolved in the Remote Installation
Services (RIS) template file (*.sif) if either
of the following conditions
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