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Method:  WshShell.ExpandEnvironmentStrings
WshShell.ExpandEnvironmentStrings strString

The ExpandEnvironmentStrings method expands the environment variables in strString and returns the resulting string. Environment variables are case-insensitive and are enclosed by a pair of % characters. If an environment variable in strString is undefined, then it is left unchanged.

The following VBScript code illustrates the behavior of this method.

Code:
Set WshShell = CreateObject("WScript.Shell")

strOriginalString = "Windows is installed in %WinDir%. %XYZ% is undefined."
strExpandedString = WshShell.ExpandEnvironmentStrings(strOriginalString)

WScript.Echo "Before: " & strOriginalString
WScript.Echo "After: " & strExpandedString

Output:
Before: Windows is installed in %WinDir%. %XYZ% is undefined.
After: Windows is installed in C:\WINNT. %XYZ% is undefined.
 


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