Where do the JDeveloper extensions go?
Where does the downloaded stuff go after you installed JDeveloper extensions, like SOA Composite Editor, Oracle BPM Studio, or AIA Service Constructor?
On Windows you can find them here:

C:\Users\_your_username_\AppData\Roaming\JDeveloper\tmp\update
Shouldn’t you be able to access the AppData directory, follow these instructions:
- Go to the folder options, on Windows7 by clicking the Organize menu and the Folder and search options.
- Choose the tab view.
- Choose
Show hidden files, folders and drives.