Hmm.. You might be right, I'll check the version.
> D:\antdev\bugs\zipfileset\build.xml:4: Class > org.apache.tools.ant.types.FileSet doesn't support the "prefix" attribute That should work too after the change, and I don't think anything will be broken. But if you are right about the version I'll just upgrade to 1.3, backward compatibility with 1.2 may not be that important. I'll roll back the change tommorow. Costin
