Msvcr71.dll is a file used by Windows to help load up a series of important “Virtual C Runtime Library” files – important settings that all your software requires to run. Despite the Msvcr71.dll file being a highly important part of every Windows system, it’s continually going to be causing a large number of issues and problems for your PC, thanks to the way in which your computer will be unable to correctly process all the settings that it will require to run. The errors you’re seeing from this file are generally going to be caused by your PC being unable to correctly read the file’s settings… but the good news is that if you’re looking to fix the errors the file is causing, you can use the steps outlined on this site.

