falko told me that the prefered method to compile ozone is with "ant". after reading "ant.bat" i see the last line calling ant.jar with "org.apache.tools.ant.Main". a call to (jdk1.3)jar -tf ant.jar gives me a crc error, some classes from java.util.zip.*, sun.tools.jar.Main.* but no org.apache.* all env variables are fine. whats going wrong ??? please help raimund jakbosmeyer