Overview
Air Forte, in its current state, will not allow many users to unlock achievements. This is a quick guide to fix this.
The Fix
1. Navigate to your SteamApps folder and open the common folder. C:Program Files (x86)SteamSteamAppscommon for a 64-bit version of Windows 7
2. Open the airforte folder next and then the data folder.
3. In it you should see a file called steamwrapper.dll. Make a copy of that file in your data folder and rename it to steamwrap2.dll.
4. Tautology[www.astats.nl] gives a pretty good breakdown as to how this problem is caused.
Please note that I found some achievements to still be a bit buggy with this fix. For instance, my copy of The High Road achievement didn’t unlock until I played some of the Challenge mode.