[Acars] Posfix 2.3.4 acting strangely

[Sam 2672]

Hi
I installed Posfix 2.3.4 and whenever I start it, WIndows installer launches 
and starts configuring Autocad LT. I used to have some demo of the ACLT in 
my machine but I have removed all traces of it in the registry. After I 
press three times cancel in the installer, then Posfix starts.
Any ideas or suggestions to get it work as planned?

With thanks and regards,
Sam

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