"The application was unable to start correctly (0xc0150002). Click OK to close the application." This is what it says and I tried everything but like everything! Please help!
TeamSpeak is available in multiple architecture mode. This means that you have the possibility to install either 32 or 64bit applications. Try to switch between them and see which one works.
The fix to this error is simple: download NET Framework 3.5 Service Pack 1 and everything should work normally.