Python 找不到Amfast.TwistedChannel rpc dll

我曾经尝试过使用Python+Twisted+zope+amfast部署一个Flash网站游戏

当我运行服务器时。它报告了一个未找到DLL的错误

File "build\bdist.win32\egg\amfast\remoting\twisted_channel.py", line 78, in __init__
File "build\bdist.win32\egg\amfast\remoting\channel.py", line 144, in __init__
File "build\bdist.win32\egg\amfast\remoting\channel.py", line 40, in __init__
File "build\bdist.win32\egg\amfast\remoting\endpoint.py", line 22, in __init__
File "build\bdist.win32\egg\amfast\encoder.py", line 1, in <module>
File "build\bdist.win32\egg\amfast\encode.py", line 7, in <module>
File "build\bdist.win32\egg\amfast\encode.py", line 6, in __bootstrap__
ImportError: DLL load failed

我已经在python环境中安装了rpclib，并查看了来自amfast googlecode的手册。但我不知道如何修复它

谢谢你的帮助

channel_set = TwistedChannelSet(notify_connections = True)
rpc_channel = TwistedChannel('rpc')
channel_set.mapChannel(rpc_channel)