My .dll files are messed up.and possibly fsx.cfg.I seem to recall some time ago,there was a post which addressed this problem.It indicated how to fix this.It seemed to have happened after installing some RAZBAM aircraft,althougg tis could be a coincidence.Any help appreciated.Ron

I think this may help you. http://support.precisionmanuals.com/KB/a92/dllxml-information-and-troubleshooting.aspx

Hello, that's what helped me a while ago although my exact issue was a bit different. For those reading that may have this problem that aren't familiar with XML files, my problem was that there was an opening tag without a closing one. What to look for is ensure for every <Launch.Addon> there is a matching </Launch.Addon>. My file was missing one of the closing tags.