I have the jar and dll in the Talend lib directory. The path and classpath are set. I also have downloaded and installed the VC++ 2005 redistribution sp 1 patch and the miss
First make sure you have the .jar file in \lib\java\ If you're on windows, you should place the dll and the sapjco3.jar to PATH If you're on linux, you need to place the .so files into your path.
Common problems with Talend OS and sapjco3: You need 32bit version if you're running a 32bit JAVA. 64bit version if you have 64bit java.