While using or installing some programs, msvcr71.dll errors may show up on your computer, it may say “Cannot start [APPLICATION]. A required component is missing: msvcr71.dll. Please install [APPLICATION] again.” or “Msvcr71.dll Not Found”. This error might be due to removal or corruption of the Msvcr71.dll, so here we introduce a method to solve this problem.
1. Download a msvcr71.zip file and save it on your computer.
2. Extract msvcr71.dll from msvcr71.zip to the installation directory of the program that is requesting the DLL file.
If that doesn’t solve the problem, try extracting it to your Windows system folder (“C:\Windows\system32″ or “C:\Windows\System”, and if you use a 64-bit version of Windows, it should be C:\Windows\SysWOW64\)
3. Reboot your computer.
4. If the problem still occurs, open Windows Start menu and select “Run…”. Type CMD and press Enter. And then type regsvr32 msvcr71.dll and press Enter.
Tips: If the same problem happened to msvcp71.dll, download msvcp71.dll and try to follow this post.