If you try to open JDev64.exe (located in C:\JDev11124\jdeveloper\jdev\bin) in Windows 7 64 bit machine, you might run into the following error:
Unable to launch The Java Virtual Machine Located at path: C:\jdev11.1.2.4\jdk160_24\bin\msvcr71.dll
This is an issue related to the JDK used in JDeveloper 11.1.2.
You installed JDeveloper in 64 bit machine. When you try to start the jdev64.exe, you run intio the above error since the JDK that comes with JDeveloper is 32 bit. That is why the jdev.exe starts fine and not jdev64.exe.
To resolve the above issue:
1. Rename the jdk located in JDev11124_Home\jdk160_24
to JDev11124_Home\jdk160_24_Orig
2. Download jdk 1.6.0_24 64 bit version ( jdk-6u24-windows-x64.exe)
3. If you jave jdeveloper in this location for example, c:\jdev11124, then install jdk 64 bit here:
c:\jdev11124\jdk160_24
4. Now you should be able to start jdev64.exe
