NPSWF32.DLL The Flash Plug-In
Originally created and published by Macromedia Inc., npswf32.dll is a Shockwave Flash plug-in for web browsers. The current publishers of the npswf32.ll include Mozilla, Opera Software and Adobe Systems Incorporated. The default path for the npswf32.dll file is c:\program files\opera\program\plugins\npswf32.dll, but some times, it could also be found in C:\Program Files\Browser Name\plugins) or C:\WINDOWS\system32\Macromed\Flash. The npswf32.dll is a file that can be easily copied in to any required folders.
The npswf32.dll has been released in over seven versions in the past few years. There were some recurrent issues with Flash Player 9, where npswf32.dll caused the player and various browsers to crash. The appropriate version with fixes is now available as zip files on http://kb.adobe.com/selfservice/viewContent.do?externalId=tn_14266&sliceId=1, although it says it’s supposedly for developers. Reverting to an older Flash Player version also resolves the problem.
In addition to the above, npswf32.dll may also cause excessive delay in loading the system and/or high CPU usage waking the computer from hibernation or standby mode.
Common errors related to npswf32.dll are usually crashes associated with Netscape 7.2 and older versions of Opera and Firefox browsers. To solve these issues there are two methods you can follow.
1) Fix the Browser
Getting the latest version of your browser type will ensure it is able to connect with new plug-in versions of the Flash Player. Switching Netscape 8, Opera 8.X and Mozilla Firefox 2 could most probably solve any problems with the crashing player file.
2) Replace npswf32.dll
If you have an older version of npswf32.dll, which would be available with Flash Player 6 or 8, try replacing the current file with that. Before you do that, keep a copy of the new version. Most often, a simple replacement works wonders for crashing browser players.