Hello, I've been using pysmbc for about a month. Thus far I've been really happy with it! I found this list while investigating an issue with growing memory/cifs connection usage in pysmbc. I believe this problem may have been reported around April 2011, but the issue could not be reproduced. The problem turns out that when open() or creat() fails, the library did not properly decrement references on the Context object(s) which in turn led to the connection leak. I've attached a test program to demonstrate the problem. I've also added a patch (against pysmbc 1.0.12). Matt McDonald