After a few months of enjoying ASA with Simconnect, the system no longer functions following an attempt of installing REX 2.0. Now, after several hours of unsuccessful attempts to get simconnect working once again, I've decided to delete all the files and re-install the SDK. Two basic questions:1.) I have FSX Gold Edition - Includes FSX Deluxe & Acceleration Expansion Pack. Is it necessary to go to fsinsider.com to update any SP's, or do I already have it with this edition?2.) Are IP Addresses subject to change? My server address (as determined by control Panel>Network and Sharing Center>Connection>View Status>Details) has changed from one simconnect functioned normally. I am quite desperate with this, so any assistance is very much appreciated. Les Parson

After a few months of enjoying ASA with Simconnect, the system no longer functions following an attempt of installing REX 2.0.

It was a bug in REX 2.0 which deleted your EXE.XML file, or possibly re-wrote it without the ASA entry. The folks at REX released a fix within a few days of it being reported, but you need to rebuild the EXE.XML file yourself, or reinstall the programs needing it like ASA. Nothing in SimConnect itself was affected -- it was only the entry in the XML file for ASA.There are detailed threads about this on the AVSIM FSX forum. You might get the needed information for ASA there, or at least from the HiFi Simulation support forum.RegardsPete