Hi,
Many people like to install addon stuff into their Il-2 (everyone really) and the fact remains for all of us.
Sometimes, a mod install can corrupt your whole game.
Yes, that is right, I have had my Il-2 corrupted after I installed one or two mods! Sometimes the problem is fixable and other times it is not, which is why backups are important.
Back up the folders that will get screwed up easily (#DBW, #SAS, #UP#, etc.) as well as Air. ini and sensitive things. That way you can revert back to your working install and not have to start modding your game from scratch!
A very good program to use when doing this is WinDirStat. AKA Windows Directory Statistics, the program helps you conveniently, quickly, and neatly organize and manage your files on your Hard Drive.
Link:
http://windirstat.info/index.html If you back up your stuff, you can very easily recover your data.
After installing big modpacks or mods that require lots of file editing you should back up and that way you don't have problems.
It is as straight forward as that.
EDIT Dec.1, 2014!Here is some very useful info from Mr. Tomoose,
HotelAlpha;
for Windows 7 (and later) users, the "Restore" function is an excellent option. I've used it a couple of times after coming to grief with an install or mod issue.
The "Restore" function has to be switched on in Windows similar to the Firewall.
If it is activated then all you have to do is highlight your screwed up folder in Windows Explorer, right-click and select "Restore previous version". Windows will show you a short list of previous backups of that folder and you simply select the backup closest to the date of the meltdown. Click on that and you will be prompted to "Restore". It will then restore just that folder. It will take a little bit of time but it is not restoring your entire system, just that folder. Just remember that the closest backup date may not have other mods you had successfully installed after that date so you may have to reinstall those particular mods if you get my meaning.
It has saved my butt a few times, it is already part of the Windows system so no 3rd party software required and I highly recommend it.
Hope this helps.
This is also very good!
So long folks, and happy modding!