Because of the super innovative state of our code, we need to use twisted stuff that isn't even in twisted yet! This code lets us store new style python classes (that allow properties and stuff) in package files. In order to have your exe code load packages you need to apply this patch to $PYTHON_LIB_DIR/site-packages/twisted/spread/jelly.py with these commands: on linux: su cd /usr/lib/python2.3/site-packages/twisted/spread/ patch jelly.py jelly.patch python /usr/lib/python2.3/compileall.py . on win32: download and extract patch.exe from http://unxutils.sourceforge.net/UnxUtils.zip into c:\windows\system32 cd c:\python23\lib\site-packages\twisted\spread patch jelly.py jelly.patch python c:\python23\lib\compileall.py . This patch will be standard in the next release of twisted.core