msi.dll File Information
  • DLL File Name:msi.dll
  • File Type:Win32/64 DLL
  • Product Name:Windows Installer
  • Developer:Microsoft Corporation
  • File Version:5 versions available
  • File Size:1.99MB - 3.5MB
  • Language Code:English (U.S.) - Neutral
  • Character Set:Unicode - Windows, Latin1
  • MD5 Checksum:Multiple Files
  • Copyright:Copyright © Microsoft Corp. 1999

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Msi.dll Errors and Solutions

msi.dll is component that contains functions used to install MSI (Microsoft Installer) packages.

The file msi.dll is a 32/64bit Windows DLL module for Windows Installer software or other related programs. The file and the associated Windows Installer software was developed by Microsoft Corporation. The file was licensed as Copyright © Microsoft Corp. 1999.

msi.dll file is a critical component for the software to work properly and without any dll error messages. You may receive an error message like the ones below that indicates the file is not found, damaged, or the wrong version.

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

To fix the error, you need to copy the missing msi.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 1.99MB - 3.5MB.

How to Install msi.dll

You can download msi.dll for free from the download section on this page. After you download the compressed 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 or game, or install .dll file directly to Windows (Windows XP, Vista, Windows 7, Windows 10).

Install DLL File to Program Folder

Copy the extracted msi.dll file to the installation folder 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 .DLL file directly to Windows.

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 msi.dll

Submit Your Comment & Ask a Question
Jeff Carboneau · 1 February 2013

Had to go to Microsoft.com and download a new "Microsoft Installer" package to correct the problem. Still having issues with 'Microsoft Update' however.

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Download msi.dll
Version OS Size Language Download
5.0.7601.1751 32bit 2.2MB English Download
5.0.10586.212 32bit 3.5MB English Download
5.0.9600.1728 64bit 2.7MB English Download
4.0.6001.1800 32bit 2MB English Download
1.10.1029.1 32bit 2.7MB Neutral 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...

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