Msvcr71.dll is a dynamic linked library included in every Windows computer, and used by many programs developed with Microsoft Visual C++. If this file is missing, you'll likely receive error messages along the lines of "The program failed to initialize as msvcr71.dll file was not located. Re-install the program to correct the problem," or "Msvcr71.dll Not Found." The simplest way to fix errors like this is to download the missing DLL and restore it to its rightful place.
Open your Web browser and go to any DLL download site's page for msvcr71.dll. (See Resources for links.) Click on the link labeled "Download msvcr71.dll," or something similar. If you are using dll-files.com, ignore the warning regarding advanced computer skills needed—this is merely a ploy to get you to purchase their auto-installation package. For that site, click the "Download" button and then the link in the window that pops up, to obtain the file.
Double-click on the downloaded ZIP file to open it. Right-click on the DLL in the file browser that opens and select "Copy."
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Browse to your computer's system folder. This is C:\Windows\System32 on most versions, and C:\Windows\SysWOW64 on 64-bit operating systems. Paste the copied DLL into this folder, so that Windows can find it next time it's needed. If the site you use gives you the DLL in uncompressed form, the way dlldump.com does, simply save it here instead.
Reboot your computer.