Pete, thank you for quick reply.
I would rather be more specific to the problem I have. In FS9, your module works perfectly in my interest of sight visibility. Unlimited visibility is set in FS then enable FSUIPC visibility tab along with enabling "allow change to FS own weather" in miscellaneous tab. Limitting it to 30NM for instance, result is clearly visible as objects(terrain) in far distance are no longer visible.
Having said that, unfortunately, same setting does not give me ANY visual change in FSX. Currently I do not use any external weather generation add-on with FSX. However, as I described as above, I thought that FSUIPC still works solely with FSX but I did not notice any change in graphic rendering that supposed to have by FSUIPC option.
I would just like to clarify if it is a stage of developping of your module for FSX. Or, am I mssing some other simple but important point to get the result that I expect ??
Best regards
Yuki