Hi All,Not sure what is causing all this now. The server is up and running. I have been flying with no problems, so I don't know. Please keep up up to date by telling us if it is continuing or if it stops.Hope this helps,JimActiveSky Supporthttp://www.hifisim.com/images/as2004proudsupporter.jpg

Ok,This doesn't happen every time I start or run AS, for me, it seems to happen on the initial load. It's an intermitent problem on my machine, which I can't reproduce everytime I start the program. I'll have to start taking notes and see what may be the senerio that can cause this. Marv

I was getting this same error after the last Avast virus checker program update. I also was not able to load the AVSIM front page, although everything else loaded correctly.I uninstalled Avast and installed the free version of AVG, instead. Unfortunately, I also installed the latest version of FSUIPC, v3.411, at the same time.I no longer have the problem. I suspect that it is the switch from Avast, since that also solved my problem with AVSIM's front page. Plus, the documentation for FSUIPC seems to indicate that the latest update corrects controller issues only. Perhaps this is a clue. Wilson

Hi everyone,Looks like about 6 reports of this...The common theme is that the problem only started once updating to AS2004.5.Here's some things to check:1) Sometimes AV / Firewall software won't recognize a program update and will treat the update as a new application, without giving it permissions. You must manually configure permissions, use a "auto detect" mode, and/or re-install AS2004.5 to get it to recognize it. 2) If your download sessions become problematic, a corruption in download data can occur on the client end causing such error messages. To verify this, close AS2004.5, check your FS9ModulesActiveSky2004 folder for the existence of any .asd files and delete them. 3) Certain new spyware/adware infections (which are GOING to be on your system unless you employ a protective program such as AD-AWARE) can prevent proper IE control (which AS2004.5 relies on). Make sure you are clean of all such infections.Please try the above and let us know if this solves the problem for you. If you continue to have trouble, please e-mail me directly at [email protected] for individual troubleshooting sessions. Thank you all for your feedback and patience while we sort this out!

I found out that the decompression error in my case also must had come when I updated my Avast.. Trying without avast now and AVG as suggested above.