I receive DLL error when starting RealFlight G5.

Summary

After installing RealFlight G5, some users may receive the following error when running the simulator:

Cannot find import; DLL may be missing, corrupt, or wrong version
File "ATI_Compress_1_7.dll", error 126

Resolution

To fix the problem, you must download the Microsoft Visual C++ 2005 SP1 Redistributable Package (x86) to make it work. That can be downloaded from Microsoft's Download Center.

To install, follow the instruction available on the download page.