I tried to install the latest version of Java Advanced Imaging Image I/O Tools 1.0_01 and it always ask me to have jdk 1.4 or jre 1.4 or higher installed (dependent on the installation type i choose). i already try to set the JAVA_HOME environment variable to my jdk folder but it still doesn't work. I need to have this installed to scrape / read JPEG2000 from PDF-files with Python.