What should I do if I encounter an UnsatisfiedLinkError when launching my SWT application?
As stated in the product docs and tutorial, the Eclipse SWT DLL (which can be found in the $ECLIPSE$\plugins\org.eclipse.swt.win32_x.x.x\os\win32\x86\ directory or in the org.eclipse.swt.win32.win32.x86_3.x.x.jar file) needs to be on your path. Placing it into your windows/system32 directory is the easiest thing to do. For Linux, you need to locate the corresponding Eclipse SWT *.so files contained in the SWT GTK plugin.