nspr4.dll File Information
  • DLL File Name:nspr4.dll
  • File Type:Win32 DLL
  • Product Name:Netscape Portable Runtime
  • Developer:Mozilla Foundation
  • File Version:5 versions available
  • File Size:152KB - 181KB
  • Language Code:English
  • Character Set:Unicode
  • MD5 Checksum:Multiple Files
  • Copyright:Copyright © 1996-2000 Netscape Communications Corporation
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Nspr4.dll Errors and Solutions

NSPR Library

The file nspr4.dll is a 32bit Windows DLL module for Netscape Portable Runtime or other related programs. The file is also referred as libnspr4.dll. The file and the associated Netscape Portable Runtime software was developed by Mozilla Foundation. The file was licensed as Copyright © 1996-2000 Netscape Communications Corporation.

nspr4.dll file is a critical component for the software to work properly without any problems. You may receive an error message like the ones below that indicates the file is not found or damaged.

  • This application failed to start because nspr4.dll was not found.
  • The file nspr4.dll is missing or corrupted.
  • A required component is missing: nspr4.dll. Please install the application again.
  • Error loading nspr4.dll. The specified module could not be found.
  • The program can't start because nspr4.dll is missing from your computer.

To fix the error, you need to copy the missing nspr4.dll file to your system or replace the corrupted dll file with a working one by following the instructions below. There are 5 different versions of the dll file available for download with sizes between 152KB - 181KB.

How to Install nspr4.dll

You can download nspr4.dll for free from the download section on this page. After downloading the zip file, unzip it to a convenient location on your computer. In order to fix dll related errors, you need to copy the .dll file to the installation folder of the application/game, or install .dll file directly to Windows (Windows XP, Vista, Windows 7, Windows 10).

Install DLL File to Program Folder

· Copy the extracted nspr4.dll file to the installation directory of the application or game.

· Check if the problem is solved. If the problem persists or you are not sure which software is having problems, install the file directly to Windows system folder.

Register DLL File Using Microsoft Regsvr

· Copy the file to "C:\Windows\System32\"

· You can install the .dll file in both system folders without any problems. In order to complete this step, you must run the Command Prompt as administrator.

· Open the Start Menu and before clicking anywhere, type "cmd" on your keyboard.

· Right-click the "Command Prompt" search result and click the "Run as administrator" option.

· Paste the following command into the Command Line window that opens up and press Enter key.

· %windir%\System32\regsvr32.exe nspr4.dll

Download nspr4.dll
Version OS Size Language Download
4.9.5.0 32bit 167.9KB English Download
4.9.1.0 32bit 167.5KB English Download
4.9.5.0 32bit 152KB English Download
4.6.5.0 32bit 160KB English Download
4.19.0.0 32bit 164.1KB English Download
4.10.2.0 32bit 181KB English Download

Please note : This is a free download. No guarantees or warranties are given or implied. Please download and install the file at your own risk...

About Developer
Mozilla, Netscape

The Mozilla Foundation is a non-profit organization that promotes openness, innovation and participation on the Internet. Mozilla, Netscape is the developer of 169 dll files in our archive, available for free download, including popular files like xul.dll, mozcrt19.dll, mozglue.dll, xpcom.dll.

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