Removes an existing environment variable.
object.Remove(strName)
The Remove method removes environment variables from the following types of environments: PROCESS, USER, SYSTEM, and VOLATILE. Environment variables removed with the Remove method are not removed permanently; they are only removed for the current session.
The following code removes the Process environment variable TestVar.
Dim WshShell, WshEnv
Set WshShell = WScript.CreateObject("WScript.Shell")
Set WshEnv = WshShell.Environment("PROCESS")
WshEnv("TestVar") = "Windows Script Host"
WScript.Echo WshShell.ExpandEnvironmentStrings("The value of the test variable is: '%TestVar%'")
WshEnv.Remove "TestVar"
WScript.Echo WshShell.ExpandEnvironmentStrings("The value of the test variable is: '%TestVar%'")
var WshShell = WScript.CreateObject("WScript.Shell");
var WshEnv = WshShell.Environment("PROCESS");
WshEnv("TestVar") = "Windows Script Host";
WScript.Echo(WshShell.ExpandEnvironmentStrings("The value of the test variable is: '%TestVar%'"));
WshEnv.Remove("TestVar");
WScript.Echo(WshShell.ExpandEnvironmentStrings("The value of the test variable is: '%TestVar%'"));