At least once per ninety days, I have at least one client who gets the ORA-12541 Error Message while using Banner Navigation on a Windows PC. This usually happens because the client did not remember to heed my warning to disable auto updates as it will unfortunately overwrite their needed jvm.dll files.

Temporary Fix
A temporary fix is to locate the jvm.dll files in the Oracle folder and correct them to the necessary version that supports the Banner Navigation. Be warned that Java updates will eventually overwrite the files and you will have to make another trip to fix the issue which will upset a paying client.

Permanent Fix
To correct the issue permanently, first disable auto updates for Java. I would also disable automatic Windows updates as well as these work in the background and often slows the Windows PC process and Internet connection. Once auto updates on Java are disabled on the computer, locate the jvm.dll files (801 KB, 2880 KB, etc) in the Oracle folder and correct them to the necessary version and size that supports your Banner Navigation.

Be sure to restart the computer or you may end up getting an FRM-41214 Error Message when you try to launch Banner Navigation once more.

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Stephan Pringle

Chief Executive Officer at Sipylus

About The Author: Stephan Pringle is an Information Technology Specialist. He covers hardware and software and provides tips for you to troubleshoot and repair issues on your own. In his spare time, he writes articles about the State of New York on his Hackintosh and HackBook and that has helped him to become the top contributor of the New York City section of Yahoo! Answers.

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