Downloading C/C++ Support
If you do not have the NetBeans 6.0 IDE, go to the NetBeans IDE 6.0 Download Page, and download a version of the IDE that contains C/C++ support. If you have a NetBeans IDE 6.0 installation that does not include C/C++ support, complete the following steps to add C/C++ support to the IDE.
If your network uses a proxy, choose Tools > Options from the main menu, select Manual Proxy Settings, enter the HTTP Proxy and Port for your proxy, and click OK.
Choose Tools > Plugins from the main menu.
In the Plugins dialog box, click the Available Plugins tab, and scroll to the C/C++ category.
Select the C/C++ checkbox.
Click Install.
The NetBeans IDE Installer starts.
In the NetBeans IDE Installer, click Next.
Read the license agreement, then select the I Accept the Terms in All License Agreements radio button, and click Next.
Click Install.
After the installation completes, select either Restart IDE Now or Restart IDE Later and click Finish.