Jim:I have no PM from you today - you can use email if you like, but let's keep at least the main subject here so everyone can benefit from it.
Please do not uninstall and reinstall anything yet.
There may be a simple solution to this issue - this comes direct from the FSUIPC support site.
The following instructions talk of deleting certain folders (see below). I would recommend renaming them as that way you can always, carefully, go back to what you had.
If you are happy with this, you could try the very first step, which is to rename the first folder, which contains the simconnect dll for FSX (as shipped - without SPs) and run the repair utility from the FSX CD, then try installing FSUIPC again and tell me what you got.
If you are not comfortable with this, do not do it and please contact us by email.
Here are the instructions from the site:
Re-installing SimConnect
Sometimes it seems that the FSX install does not install SimConnect properly, and re-installing it seems to fix problems with Add-Ons.
Do not resort to a complete FSX re-install, as the same mis-install of SimConnect seems to re-occur. Instead try the following:
1. Find and delete the following file folder (change the C:\WINDOWS part to your Windows folder if it isn't in the standard place):
C:\WINDOWS\WinSxS\x86_Microsoft.FlightSimulator.SimConnect_67c7c14424d61b5b_10.0.60905.0_...
(the part at the end is difference on XP and Vista -- only the part shown here matters.
2. Insert the FSX CD, and run the repair utility. This should do the trick.
Incidentally, in case you need to do the same before re-installing FSX SP1,, or FSX Acceleration or SP2, there will be one or two more folders to delete:
The first (61242) is the SP1 version, and the second (61259) is the SP2/Acceleration version.
C:\WINDOWS\WinSxS\x86_Microsoft.FlightSimulator.SimConnect_67c7c14424d61b5b_10.0.61242.0_
C:\WINDOWS\WinSxS\x86_Microsoft.FlightSimulator.SimConnect_67c7c14424d61b5b_10.0.61259.0_
When deleting these in Vista you will have to gain elevated Administrator rights (i.e. run Explorer using "run as ... administrator") and maybe also change the folder permissions.