py2exe: Reduce size of the library archive

I just created my first py2exe executable and noticed that with the EXE, there is a ZIP file created with the size of around 1.4 MB.

My question is, can I reduce the size of this or is it expected that the typical size of an EXE generated with py2exe will be ~ 4 MB (that means with all the files: python2.6dll, library.zip)