Msvcr70.dll errors are caused by situations that lead to the deletion or corruption of the msvcr70 DLL file. In some cases, msvcr70.dll errors can indicate a registry problem, a virus or malware issue, or even a hardware failure.
How to Fix Missing .dll Files Error on All PC Games, Technology & Ecommerce
Follow these steps in the order they are described so that you can try the simpler solutions first.
Recover msvcr70.dll from Recycle Bin The simplest possible cause of a "missing" msvcr70.dll file is that you accidentally deleted it.
If you suspect this, but you've already emptied the Recycle Bin, you may still be able to recover the files with a free file recovery program.