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.
Remarks
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, the Environment 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
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
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.
Set WshShell = WScript.CreateObject("WScript.Shell")
Set WshSysEnv = WshShell.Environment("SYSTEM")
WScript.Echo WshSysEnv("NUMBER_OF_PROCESSORS")
var WshShell = WScript.CreateObject("WScript.Shell");
var WshSysEnv = WshShell.Environment("SYSTEM");
WScript.Echo(WshSysEnv("NUMBER_OF_PROCESSORS"));