Source: http://simhq.com/forum/ubbthreads.php/topics/3261093/Re_Need_some_help_with_patchin#Post3261093

The first thing that will probably help you would be to create a Games folder and not use the Program files folder. Windows 7 doesn't like things being changed when it is in that folder. Moving everything to that folder and patching it there might just be enough to get your problem solved.

Here are some articles in the Knowledge Base at M4T that I think might help you.
Installing on Windows 7 systems: http://www.mission4today.com/index.php?name=Knowledge_Base&cat=85

IL-2 1946 Installation and Patching Guide: http://www.mission4today.com/index.php?name=Knowledge_Base&op=show&kid=584


If the articles don't give you the answer you need the Installation and Patching forum should.
Installation and Patching: http://www.mission4today.com/index.php?name=ForumsPro&file=viewforum&f=67

Hope this helps.


Wheels

Source: http://simhq.com/forum/ubbthreads.php/topics/3709181/Re_Can_i_change_the_names_of_t#Post3709181

It is my opinion that Windows 7 is causing the problem since anything that is placed in the Program Files is much harder to alter. You should be able to move the entire "Ubi Soft" folder out of the "Program Files" folder into another folder on your C drive. I use a folder named "Games" so its easy to remember. Moving the sim out of the "Program Files" folder will bypass the extra security features of the Program Files folder.

Default:
C:\Program Files\Ubi Soft\IL-2 Sturmovik Forgotten Battles - Windows XP
C:\Program Files (x86)\Ubi Soft\IL-2 Sturmovik Forgotten Battles - Windows 7

Altered:
C:\Games\Ubi Soft\IL-2 Sturmovik Forgotten Battles

You will also need to create a new desktop shortcut or alter the filepath in the existing desktop shortcut to launch the sim from your desktop.

If you have more than one game in the "Ubi Soft" folder then create a "Games" folder and a "Ubi Soft" folder inside of the "Games" folder and move the "IL-2 Sturmovik Forgotten Battles" folder into the "Ubi Soft" folder.

After moving the sim to the Games folder the "Squadron" file should be editable.