Its probably a good idea to use the code tags to put large clumps of source into like this :
This is a code tag and makes large blocks of source code alot tidier. It also saves our forum mods from getting headaches putting all of your code into tags for you lol.
You use the code tags by clicking the "code" button on the Post Forum Message panel. Pasting/typing you code, and then clicking the "code" button again. You should see the source you are posting surrounded by the word "code" inside square brackets.. kind of like : "[" code "]" "[" "/" code "]" ... obviously without the quotes though lol.
The message will be either DarkGDK.h or string.h that isnt found. More than likely DarkGDK.h, you will get taht error when your installation hasnt completed correctly. It will more than likely be looking for the files in the wrong place. Have a look at the forums sticky about installation, it has solutions to most problems that can happen during installs.
If it ain't broke.... DONT FIX IT !!!