The logbook is in BIN format which is classed by Windows as an unrecognised file type. You could associate it with any application you wish but I believe updating the logbook is usually done within FSX. Leaving it associated with AVG should do no harm as FSX can still read it.

Please be careful editing this file as I believe it can cause all sorts of problems. From advice I've seen in this forum it might be better to use different software to keep a record of your flights.

You're welcome to the advice. I'm not sure how AVG associated itself with BIN files on your system but backing the files up wouldn't change the association.

FSX has a Repair option that should restore all default files. The only problem being that if you have SP1, SP2 or Acceleration installed you would have to uninstall them before running it.

I already told you. It's an unrecognised file type. It's not associated with any software.

No need to apologise. I suspect most people don't know much about file association. All it really does is to open the file in the associated program when you double-click on the icon.

A lot of FS default files are classed as unrecognised file types. FS can still read them whichever program they're associated with.

Meck wrote on Apr 15^th, 2010 at 3:36am:

That's interesting Meck. I checked on the BIN (.bin) file format & it's used by many different applications including AVG update & CDRWin. http://www.computerfileextensions.com/file-extensions.php/BIN

Some software will give the option of associating itself with various file formats during the install process. My advice would be not to allow this. It can be done separately later from File Properties if you wish. The most common culprit is Adobe AIR which automatically associates itself with the AIR file format during the install without permission. It also changes the file description to Installer Package. This should not cause problems unless you double-click on FS AIR files thinking that this will install the aircraft.

Associating various programs with FS default file formats will not usually affect their use in FS. However, I think WAV sound files can cause problems if not associated with Windows Media Player.