# Deployment of VC2008 apps without installing anything

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If you create a default CRT/MFC application with VS2008, this application will not run on other computers. You application will complain with
“This application has failed to start because the application configuration is incorrect”.

The problem is that by default VC2008 uses the DLL-version of the CRT/MFC. These DLLs are not pre-installed on any OS.
To overcome this problem, you have tree options:

1. Statically link to the CRT/MFC
2. Use vcredist_x86.exe / vcredist_x64.exe to install the DLLs in the system
3. Deploy the CRT/MFC DLLs with your application (in the same directory)

In the following I will explain the last option. Especially in conjunction with VS2008 service pack 1 (SP1). Because this leads to a little bit more compications in ApppLocal deployment.

In general, it is very easy to deploy your application with the needed CRT/MFC DLLs.
Just copy the contents of the directory

• C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\redist\x86\Microsoft.VC90.CRT
• C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\redist\x86\Microsoft.VC90.MFC

into the same directory as your application. Then you should have the following files in your app-folder:

Microsoft.VC90.CRT.manifest
msvcr90.dll
msvcp90.dll
msvcm90.dll
Microsoft.VC90.MFC.manifest
mfc90.dll
mfc90u.dll
mfcm90.dll
mfcm90u.dll


Then your application works on an other computer!

BUT: This does not work, if you installed VS2008-SP1

The problem with VS2008 SP1 is: It overwrites all files in the “VC\redist” directory with the new version. This is not really bad. The problem is: It has a newer version number inside the manifest files. But if you compile your application with VS2008-SP1 it write the RTM-version into the application manifest! Now the version number in your application manifest does not match the version in the “new” CRT/MFC manifest. Therefore it will refuse to load these DLLs and your application cannot start.

The simplest way to overcome this problem is by changing the “Microsoft.VC90.CRT.manifest” and “Microsoft.VC90.MFC.manifest” files. Replace the version attribute in both Microfot.*.manifest files from “9.0.30729.1″ (or whatever version/SP you have) to the version number in your applications-manifest (which is normally “9.0.21022.8″ (RTM)).
Old:

version="9.0.30729.1"

New:

version="9.0.21022.8"

Then your application will work on an OS without installing anything.

Alternatively, you can change your applications manifest, so that it uses the new version number. This can easily done by defining

#define _BIND_TO_CURRENT_VCLIBS_VERSION 1


in stdafx.h (at the top) or in your project settings. This will embed the actual CRT/MFC-version into your applications manifest (works starting with VS2008-SP1).
Also, if you use new features from the MFC-feature-pack, you should always define this!

Just a small note: You should be aware, that this “AppLocal” installation is not really “AppLocal”… it is only AppLocal, if the vcredist_*.exe was not installed. If the vcredist_*.exe is installed, then the DLLs from the WinSxS directory will be used. If you want to prevent this, you can do a really AppLocal deployment.

A small addition: If you write .NET-apps (/clr) you still must install the .NET Framework redistributable.

But the goood news is: Starting with VC2010, the manifest (WinSxS) is gone

no matches for kind “Deployment“ in version “extensions/v1beta1“
no matches for kind “Deployment“ in version “extensions/v1beta1“
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Howto: Deploy VC2008 apps without installing vcredist_x86.exe
There are several reasons for xcopy deployment of an application (also known as application local). One main reason is that you are independent of what the target computer has installed.
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大家都知道一个应用的deploymenttarget是决定了应用所能工作的设备系统的最低版本，所以我们在设置该target的时候都设置成了项目所支持的系统最低版本（为了最大程度的兼容），如果设置的高了，在低版本的设备上是无法正常安装的，所以对于应用的deployment target的设置我们大家一般都不会犯错误。
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