a2851267_g____REBOL_NT_Services_Library__Mandatory_
[Property] interactive: [Type] logic! [Description] yes : allow the service to interact with the user's desktop (e.g.: display a window). This mode doesn't survive to session logoff. no : no interaction with user's desktop [Mandatory?] 
no
y e s
n o
SI.org :: REBOL NT-Services Library
Mandatory?