I noticed that my new install of 2.4 etc. has some large(!) numbers. ActivePython 78MB (true) ctypes.9.2 148MB numarray 1.1.1 148MB Numeric23.6 148MB py2exe .5.4 148MB It appears that they are reporting the size of the entire c:\Python24 directory tree "size on disk" Just an observation... Ray Schumacher