[hpsdr] KISS 1.04 used with VAC from digital program?

[Ken N9VV (Win-8/64)]

Hello, I am a novice user with KISS 1.04.
Is there a hidden method to use VAC from a
digital program (fldigi, MixW) with KISS 1.04?

thanks,
Happy Holidays,
73 de Ken N9VV
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