I'm having problems building v2.7.2 (2.7.0 builds OK) and can't work out exactly where it fails - ie which program is running at the time. I know the Makefile is being processed and suspect it is while making the 'install' target, but it's difficult to pinpoint the place where the error occurs... Here is what I have at the time of the error:- copying and adjusting utilities/decompilezpy.py -> G:/ux2bs/workdir/Zope-2.7.2-0/build-base/python-2.3/build-scripts ECHO is on. Zope built. Next, do "\make install\" \(or "\make instance\" to run a Zope instance directly from the build directory\). ECHO is on. "G:\USR\BIN\PYTHON.EXE" "G:/ux2bs/workdir/Zope-2.7.2-0/setup.py" \ build --build-base="G:/ux2bs/workdir/Zope-2.7.2-0/build-base/python-2.3" --build-lib="G:/ux2bs/workdir/Zope-2.7.2-0/build-base/python-2.3/build-lib" --build-scripts="G:/ux2bs/workdir/Zope-2.7.2-0/build-base/python-2.3/build-scripts" --build-temp="G:/ux2bs/workdir/Zope-2.7.2-0/build-base/python-2.3/build-temp" running build running build_py running build_ext running build running build_py running build running build_scripts "G:\USR\BIN\PYTHON.EXE" "G:/ux2bs/workdir/Zope-2.7.2-0/setup.py" install \ --prefix="/usr/local/Zope" --build-base="G:/ux2bs/workdir/Zope-2.7.2-0/build-base/python-2.3" --build-lib="G:/ux2bs/workdir/Zope-2.7.2-0/build-base/python-2.3/build-lib" --build-scripts="G:/ux2bs/workdir/Zope-2.7.2-0/build-base/python-2.3/build-scripts" --build-temp="G:/ux2bs/workdir/Zope-2.7.2-0/build-base/python-2.3/build-temp" invalid command name '' make: *** [install] Error 1 I have no idea what this 'invalid command name' is - it doesn't happen with v2.7.0. -- John