Hi, i tried to install a product for Zope a few days ago, and i followed some instructions. I need to compile some archives before, and this generated a .so file. Then it is said in the instructions that i must copy the .so file in the directory inside Zope of the product. So i suggest you to copy libmysqlclient.so.10 into the folder ZMySQLDA. Sorry, but it is the only idea i have. Bye. Juan