Software⏱️ 2 min read📅 2026-05-31

How to Fix: WAMP shows error 'MSVCR100.dll' is missing when install

Missing MSVCR100.dll file error when installing WAMP. Solution involves downloading the correct version of the file and updating the Windows environment variables.

Quick Answer: Download the 32-bit or 64-bit version of MSVCR100.dll from a reputable source, then update the Windows environment variables to point to the downloaded file.

The MSVCR100.dll file is a crucial component of the Visual C++ Redistributable package, which is required for WAMP to function correctly. When this file is missing, it can cause various issues, including the yellow logo problem you're experiencing.

🛠️ Step-by-Step Verified Fixes

Method 1: Download and Install Visual C++ Redistributable

  1. Step 1: Go to the official Microsoft website ([https://www.microsoft.com/en-us/download/details.aspx?id=463DA003-FCBA-4800-BDC6-95B977F7A9AE](https://www.microsoft.com/en-us/download/details.aspx?id=463DA003-FCBA-4800-BDC6-95B977F7A9AE)) and click on the 'Download' button for the Visual C++ Redistributable package.
  2. Step 2: Run the downloaded file and follow the installation instructions to install the Visual C++ Redistributable package.

Method 2: Update WAMP to Latest Version

  1. Step 1: Open the Command Prompt as an administrator and type `wampcmd /install` to update WAMP to its latest version.
  2. Step 2: Restart WAMP Server Manager to ensure that the changes take effect.

🎯 Final Words

By following these steps, you should be able to resolve the MSVCR100.dll error and get your WAMP server up and running smoothly. If you're still experiencing issues, feel free to reach out to our support team for further assistance.

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