You can use also another compression tool. For example: ARJ.
Script looks like:

code:

---

arj a -jm1 -m2 kixtools.arj test.kix
set license=scripting@wanadoo.nl - 2000
codec /e kixtools.arj kixtools.sec
set license=

---

code:

---

codec /d kixtools.sec kixtools.arj
arj e kixtools.arj test.kix
kix32 test.kix

---

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greetings