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NetBeans is engineered to take into account multiple users launching NetBeans from the same installation. NetBeans accommodates this by keeping each user’s personal settings separate from the NetBeans code installation. This is handled correctly on both Windows and Unix systems. Also, NetBeans distinguishes between NetBeans versions. So if you have previously run NetBeans and upgrade to a later version, the first time the new version runs, it will offer to migrate your settings from the previous version to the version you are now running.
On Unix systems, settings are kept in a local settings directory created in the user’s home directory the first time NetBeans is run.
On Windows, the first time NetBeans is run, NetBeans prompts the user
for the name of a directory in which settings should be stored (see
Figure 1-1). The directory chosen by the user is
stored in a Windows Registry key
HKEY_CURRENT_USER/Software/netbeans.org/NetBeans
IDE/
$VERSION, which is how
NetBeans finds the user settings directory each time it runs. Some
points: