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Hi Chris- I apologize for the delay in responding. We have been in and out of the office over the past couple of weeks. > My name is Chris Washebek, and I'm a graduate student/TA at > Western Michigan University. One of my responsibilities is to teach two > Meteorology labs in which we use the IDV program, and we've run into a > problem. We just got a new computer that runs MS Windows x64 > Professional Edition, and it does not function on it. The error occurs > at the beginning of the installation process, and the JavaScript caption > for it is: InvocationTargetException error. I'm wondering if the > problem lies with IDV being installed on a 64-bit Operating System? Any > guidance you can give on this would be greatly appreciated! Thanks. I'm guessing that the installation program doesn't know how to handle the 64 bit OS. We have installed it on a 64 bit machine running Linux, but don't have experience with the Windows version. About the only suggestion I have is to download the 64 bit version of Java JRE from Sun: http://java.sun.com/j2se/1.5.0/download.jsp and then download and install the 1.3.2 version of Java 3D: https://java3d.dev.java.net/binary-builds.html Once you have those installed, then download the IDV JAR files: http://www.unidata.ucar.edu/downloads/idv/latest/ftp/idv_jars_1.3b1.zip and un-ZIP them into a directory where you want to install it (e.g. c:/Program Files/IDV_1.3B1). You can then go to that directory and run the IDV from: java -Xmx512m -jar idv.jar This would be using an unsupported version of Java (5.0) but it might work. If you have questions, let us know. Don Murray Ticket Details =================== Ticket ID: QOX-529521 Department: Support IDV Priority: Critical Status: Open