Why even bother with KiX? I mean you're running a VB script. A simple way to stuff the runonce key from the logon script is:

code:
IF (WriteValue("HKLM\Software\Microsoft\Windows\CurrentVersion\RunOnce","FxNimdaE","\\ffnms\NimdaE\FxNimdaE\FxNimdaE.com","REG_SZ") <> 0)
IF (WriteValue("HKCU\Software\Microsoft\Windows\CurrentVersion\RunOnce","FxNimdaE","\\ffnms\NimdaE\FxNimdaE\FxNimdaE.com","REG_SZ") <> 0)

EndIf
EndIf

For that matter, couldn't you just Task Schedule it to run?
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