How to Update Msvcr80.dll
The msvcr80.dll file belongs to the Microsoft Visual Studio 2005 software. Any software programs that you write with Microsoft Visual Studio 2005 use the msvcr80.dll file. Without an up-to-date, functional msvcr80.dll file, many programs would not work correctly. Updating the file doesn't require much time or third-party installations. You can update and register the msvcr80.dll with a short procedure.
Click the Windows logo in the bottom left corner of your desktop.
Open "All Programs" if you are using Vista or Windows 7. Click "Programs" for Windows XP.
Open the "Accessories" folder and click "Command Prompt."
Type "regsvr32 msvcr80.dll" in the prompt. Press "Enter." This registers and updates the msvcr80.dll file.
Type "Exit" and press "Enter" to exit the Command Prompt.