I had the same Problems creating the encrypted KIX-File like Tan Bandradi.

I think the Problem is the call of the Program !!
When you call the program without the extension ".exe"
e.g. "kixcrypt c:\test.kix"
i get an error !!

But when you call the Programm with itīs own extension, like
"kixcrypt.exe c:\test.kix"

it works !!
Hope i could help !!

KST