Oracle Discoverer - dis51adm.exe or dis51usr.exe ERROR: The program can't start because MSVCR71.dll is missing from your computer. Try reinstalling the program to fix this problem.

I received the following error while installing Oracle Discoverer Administrator/Desktop on Windows 2012 or Windows 8 Server 64 bit.

Discoverer Desktop and Administrator are 32 bit application.

Error: 
dis51adm.exe - System Error

The program can't start because MSVCR71.dll is missing from your
computer. Try reinstalling the program to fix this problem.

Solution:
The SVCR71.dll is a Microsoft Visual C Runtime library.You can contact Microsoft Support in order to install this library file.

OR

1. Download MSVCR71.dll from dll-files.com. (It is free.)
2. Unzip this file.
3. Place MSVCR71.dll into C:\Windows\System32 directory, if you are using a 32-bit Windows or into C:\Windows\SysWOW64 if you using a 64-bit Windows machine. Now, try to open Discoverer Administrator or Desktop 11g(11.1.1).

Reference:
How To Find Oracle BI Discoverer 10g and 11g Certification Information (NOTE:233047.1)
Attempting To Run Discoverer Administrator Or Desktop 11g(11.1.1) On Windows 7 Get Error - "The program can't start because MSVCR71.dll is missing from your computer" (Doc ID 1255244.1)