There is a typo in line 183 of the Install-MicrosoftVisualC++x86x64.wsf script that lists the 2013 file instead of the 2015:
oLogging.CreateEntry oUtility.ScriptName & ": About to install " & sSetupFile2013x86, LogTypeInfo
Should be:
oLogging.CreateEntry oUtility.ScriptName & ": About to install " & sSetupFile2015x86, LogTypeInfo
There is a typo in line 183 of the Install-MicrosoftVisualC++x86x64.wsf script that lists the 2013 file instead of the 2015:
oLogging.CreateEntry oUtility.ScriptName & ": About to install " & sSetupFile2013x86, LogTypeInfo
Should be:
oLogging.CreateEntry oUtility.ScriptName & ": About to install " & sSetupFile2015x86, LogTypeInfo