关于proe4.0的VB.NET开发问题

我现在运行proe4.0中的例子，但是它总是提示我Name service is not running on the system.Environment variable 'PRO_COMM_MSG_EXE' has not been set.Environment variable 'PRO_DIRECTORY' has not been set.These may lead to errors in running the application.但是我已经设置了上面两个变量。我想问一下PRO_DIRECTORY环境变量的值应该怎么设置？PFCLS_START_DIR 环境变量也要设值吗，怎么设置？当有这种错误继续运行下去的话，它提示我asyncConnection = (New CCpfcAsyncConnection).Start(txtProEPath.Text, ".")这句好错了，我应该怎么办，现在很着急，做毕业设计已经没有多少时间了，请高人来指点一下，不胜感激！