Microsoft VC++ 2005 SP1 and 2008 SP1 Redistributable Package

I have an application that requires Microsoft VC++ 2005 (SP1) Redistributable Package.

I know that I can just download it and install it.

The problem is, in our server, there is Microsoft VC++ 2008 (SP1) Redistributable Package already installed.

Now, do I still need to install the 2005 (SP1开发者_如何学编程) version?

Or the 2008 (SP1) is "backward compatible" with 2005 (SP1)?

Thank you.

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You need to install the 2005 redist :- the package it installs consists of dlls called MSVCR80.dll, whereas the 2008 redist has the MSVCR90.dll files. They are not compatible.