I can’t launch patch 1.6.

I would like to know more about the problem. First of all: is the game a licensed copy? What is the original version? If it's just a licensed original copy, it has version 1.0, and to install patch 1.6, you need to first install patches 1.4, then 1.5, and only then 1.6! For Silver Edition (which is already patched to 1.5), you can install 1.6 directly. If it's a pirated copy, the patches probably won't install. Also, I suggest you reinstall the game; it might be installed incorrectly! Good luck!