Types of NNS Files

Primary NNS File Association

.NNS

File Format:	.nns
File Type:	NAVNET32

Created by:	Symantec
File Category:	Settings Files
Registry Key:	HKEY_CLASSES_ROOT\.nns

Software Programs That Open The NAVNET32:

NAVNET32 by Symantec

Windows

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Troubleshooting Problems Opening NNS Files

Common Problems Opening NNS Files

NAVNET32 is Not Installed

When you double-click your NNS file, you may see a dialog box from your operating system stating that it "Cannot Open This File Type". If this is the case, it's usually due to the fact that you do not have NAVNET32 for %%os%% installed on your computer. Because your operating system doesn't know what to do with this file, you won't be able to open it by double-clicking.

Tip: If you know of another program that can open your NNS file, you can try opening it by selecting the application from the programs listed.

Wrong Version of NAVNET32 is Installed

In some cases, you might have a newer (or older) version of a NAVNET32 file that is unsupported by your installed application version. If you do not have the proper version NAVNET32 (or any of the other programs listed above), you may need to try downloading a different version of it, or one of the other software applications listed above. This problem is most common when you have an older version of the software application, and your file was created by a newer version that it cannot recognize.

Tip: Sometimes you can get a clue about the version of NNS file you have by right clicking on the file, then clicking on "Properties" (Windows) or "Get Info" (Mac OSX).

Summary: In either case, the majority of problems opening NNS files are related to not having the correct software application installed on your computer.

Other Causes of NNS File Opening Problems

Although you might already have NAVNET32 or another NNS-associated software installed on your computer, you can still encounter problems opening NAVNET32 files. If you are still having problems opening NNS files, there may be other issues that are preventing you from opening these files. These other problems include (listed in order from most to least common):

• Invalid NNS file references in the Windows Registry (the "phonebook" of the Windows Operating System)
• Accidental deletion of the description of the NNS file in the Windows registry
• Incomplete or bad installation of a software application associated with the NNS format
• Your NNS file is corrupted (issues with your NAVNET32 file itself)
• Your NNS is infected with malware
• Device drivers of the hardware associated with your NNS file are corrupt or out-of-date
• Your computer does not have the adequate system resources to open the NAVNET32 format