How to show DOS output when using vbscript Exec

I have the following VBScript:

Set Shell = WScript.CreateObject("WScript.Shell")
commandLine = puttyPath & "\plink.exe -v" & " -ssh" [plus additional commands here]    
Set oExec = Shell.Exec(commandLine)

This causes a DOS window to appear but the output from plink.exe is not displayed. Is there any way to get the DOS window to display this output?