Windows 7 QQ can not start how to do

The friend uninstalled the XP system, installed Windows 7, and installed the application software. When I thought that everything was fixed, I double-clicked the QQ client and found that I could not start QQ. So I couldn't solve the problem by unloading it back and forth.
The friend called me and sent a screenshot to me. This is a problem that often occurs when the Windows 7 system is newly installed. When the QQ is started, a pop-up window prompts: The application cannot be started because the parallel configuration of the application is incorrect. For more information, see the application event log or use the command line sxstrace.exe tool.
In fact, this is a small problem. In this case, you only need to download a VC++2005 runtime from Microsoft's official website!
Friends installed VC++2005 runtime library according to my prompt, restart the computer. Then restart double-click QQ, you can use it normally.
Under normal circumstances, this kind of problem can not be solved under Windows7 QQ2009 or above. If we install VC++2005, then restart the machine and click QQ, although QQ is logging in, but QQ still can't log in normally. We have to uninstall QQ and re-install it. After installation, you will find that you can use your QQ normally.