20130730

WshEnvironment

Environment Property


Returns the WshEnvironment object (a collection of environment variables).


object.Environment ([strType])

Arguments
object
WshShell object.
strType
Optional. Specifies the location of the environment variable.


The Environment property contains the WshEnvironment object (a collection of environment variables). If strType is supplied, it specifies where the environment variable resides with possible values of System, User, Volatile, or Process. If strType is not supplied, theEnvironment property returns different environment variable types depending on the operating system.
Type of Environment Variable
Operating System
System
Microsoft Windows NT/2000
Process
Windows 95/98/Me
Note Note:
For Windows95/98/Me, only one strType is permitted — Process.
The following table lists some of the variables that are provided with the Windows operating system. Scripts can access environment variables that have been set by other applications.
Note Note:
None of the following variables are available from the Volatile type.
Name
Description
System
User
Process (NT/
2000)
Process (98/ME)
NUMBER_OF_PROCESSORS
Number of processors running on the machine.
X
-
X
-
PROCESSOR_ARCHITECTURE
Processor type of the user's workstation.
X
-
X
-
PROCESSOR_IDENTIFIER
Processor ID of the user's workstation.
X
-
X
-
PROCESSOR_LEVEL
Processor level of the user's workstation.
X
-
X
-
PROCESSOR_REVISION
Processor version of the user's workstation.
X
-
X
-
OS
Operating system on the user's workstation.
X
-
X
-
COMSPEC
Executable file for the command prompt (typically cmd.exe).
X
-
X
X
HOMEDRIVE
Primary local drive (typically the C drive).
-
-
X
-
HOMEPATH
Default directory for users (typically \users\default in Windows 2000).
-
-
X
-
PATH
PATH environment variable.
X
X
X
X
PATHEXT
Extensions for executable files (typically .com, .exe, .bat, or .cmd).
X
-
X
-
PROMPT
Command prompt (typically $P$G).
-
-
X
X
SYSTEMDRIVE
Local drive on which the system directory resides (typically c:\).
-
-
X
-
SYSTEMROOT
System directory (for example, c:\winnt). This is the same as WINDIR.
-
-
X
-
WINDIR
System directory (for example, c:\winnt). This is the same as SYSTEMROOT.
X
-
X
X
TEMP
Directory for storing temporary files (for example, c:\temp).
-
X
X
X
TMP
Directory for storing temporary files (for example, c:\temp).
-
X
X
X
Example

The following code retrieves the system environment variable NUMBER_OF_PROCESSORS.

VBScript
Set WshShell = WScript.CreateObject("WScript.Shell")
Set WshSysEnv = WshShell.Environment("SYSTEM")
WScript.Echo WshSysEnv("NUMBER_OF_PROCESSORS")

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