Sometimes you have to work 'outside' the test tool to do certain things.
This is how you would do it in VBscript. You would have to modify the syntax for other test languages....
Dim objShell
Set objShell = CreateObject("Shell.Application")
objShell.ShellExecute svPathAndFile, svArguments, svStartInDir, "runas", 1
'****************************************************************************************************
' Syntax of Shell.Application
' .ShellExecute "application", "parameters", "dir", "verb", window
'
' .ShellExecute 'some program.exe', '"some parameters with spaces"', , "runas", 1Key
'
' application The file to execute (required)
' parameters Arguments for the executable
' dir Working directory. The Working directory may be different that the directory that the application is in.
' verb The operation to execute (runas/open/edit/print)
' window View mode application window (normal=1, hide=0)
'****************************************************************************************************