I think you're confusing what KiXcrypt is doing. KiXcrypt is just a encryption wrapper for the actual KiXtart script. Thus, everything you talk about and do is related to how you use KiXtart and the KiXtart script, not KiXcrypt. Using WKIX32 /i correctly suppresses console output as explained in the KiXtart Manual. This has nothing to do with KiXcrypt. Please read the FAQ Forum on how to suppress console output. Basically, the script you wrote is creating the console output, thus you'll have to fix your script. Also, RUNAS is inheritantly insecure and there are better alternatives as descripbed in the FAQ Forum. RUNAS in itself is also performing correctly.
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There are two types of vessels, submarines and targets.