I'm building a Windows Installer for a VS2015 project.
VS2015 includes the Merge Modules needed to put the VS2015 runtime library into the installer package, however there are DLLs that I didn't compile that have dependencies on older visual studio runtimes.
I don't have the merge modules for these runtimes in the VS2015 library and so far the only way I've seen suggested is to install previous versions of Visual Studio. This is a tremendous pain, because I'll end up with three, extra, different versions of Visual Studio on my machine (to go with the 2015 and 2017 I've already got).
Surely there must be a handy repository to download old merge modules from?
Fire up a VM, install and grab file files. Shouldn't take long at all.
Honestly though I caution against using merge modules. That's a legacy approach with various issues. A better safer approach is to create a bootstrapper and redist the vcredist.exe packages instead.
I have a problem with our executable. I'm running this C++ 32-bit executable on my Windows 7 64-bit development box that also has all those Microsoft applications (Visual Studio 2008 + 2010, TFS, SDK, Microsoft Office)...
And it's still running just fine.
Now I got the client installation of the very same program and was asked to test it with a clean Windows 7 installation. Thus I got one Windows 7 64-bit VMware and updated it to Windows 7 SP 1 (the very same version my developer box is tuning).
But while on my developer box everything is fine the program does not work with the VMware (30 days trial) box.
The x86 Dependency Walker is telling me that the following DLL files are missing:
API-MS-WIN-CORE-COM-L1-1-0.DLL
API-MS-WIN-CORE-WINRT-ERROR-L1-1-0.DLL
API-MS-WIN-CORE-WINRT-L1-1-0.DLL
API-MS-WIN-CORE-WINRT-ROBUFFER-L1-1-0.DLL
API-MS-WIN-CORE-WINRT-STRING-L1-1-0.DLL
API-MS-WIN-SHCORE-SCALING-L1-1-0.DLL
DCOMP.DLL
GPSVC.DLL
IESHIMS.DLL
I googled for those API-MS-WIN-... DLL files and found they should actually already be part of Windows 7 (some sites claiming the belong to Windows 8 and Windows Server 2012 though).
I already tried the suggested fixes I found, which are:
running 'sfc /scannow'
installing Visual Studio 2008 SP1 runtime executables
But that didn't solve anything. :-(
Side note: My development box does not have them either, and does not seem to need them. For example, the user32.dll on my box does not link against one of those, while the installation on the VMware does.
Any idea on how to fix this issue?
I tried to find a suitable download / fix on the Microsoft pages, but I failed.
After solving my issue I wanted to report what I found out, and I can't post this as an answer because the question has been closed.
Actually all the DLL files reported missing by the Dependency Walker tool, namely those
* API-MS-WIN-CORE-...
type DLL files were not part of the actual problem.
In my case the registration of three OCX files was missing and after that everything was just fine, BUT Dependency Walker tool still listed all the very same DLL files as before even when the program was just running fine now.
The gist of it: As someone elsewhere stated, the tool is a bit dated by now and does not always work properly with a newer OS. Thus keep an eye open and don't get mislead by missing 'API-MS-WIN-CORE-COM-L1-1-0.DLL', ... the problem probably lies entirely elsewhere.
This problem is related to missing the Visual Studio "redistributable package." It is not obvious which one is missing based on the dependency walk, but I would try the one that corresponds with your compiler version first and see if things run properly:
Visual Studio 2015
Visual Studio 2013
Visual Studio 2010
Visual Studio 2008
I ran into this problem because I am using the Visual Studio compilers, but not the full Visual Studio environment.
Going to dare to inject a new link here: The latest supported Visual C++ downloads. Stein Åsmul, 29.11.2018.
I just resolved the same problem with C++ Qt 5 and Windows 7 64 bits with MSCVC 2012.
In the beginning I thought it was a MSVC/Windows DLL file problem, but as BorisP said, the problem was in my project dependencies. The key is "How to know your project dependencies in Qt 5?".
As I didn't find any clear way to know it (Dependency Walker didn't help me a lot...), I followed next the "inverse procedure" that takes no more than 5 minutes and avoid a lot of headaches with DLL file dependencies:
Compile your project and take the executable file to an empty folder: myproject.exe
Try to execute it, It will retrieve an error (missing DLL files...).
Now, copy all the DLL files from Qt (in my case they were in C:\Qt\Qt5.1.1\5.1.1\msvc2012_64_opengl\bin) to this folder.
Try to execute again, it will probably works fine.
Start to delete progressively and try every time your executable still works, trying to leave the minimum necessary DLL files.
When you have all the DLL files in the same folder it is easier to find which of them are not valid (XML, WebKit, ... whatever..), and consequently this method doesn't take more than five minutes.
I just resolved the same problem.
Dependency Walker is misleading in this case and caused me to lose time. So, the list of "missing" DLL files from the first post is not helpful, and you can probably ignore it.
The solution is to find which references your project is calling and check if they are really installed on the server.
#Ben Brammer, it is not important which three .ocx files are missing, because they are missing only for Leo T Abraham's project. Your project probably calls other DLL files.
In my case, it was not three .ocx files, but missing MySQL connector DLL file. After installing of MySQL Connector for .NET on server, the problem disappeared.
So, in short, the solution is: check if all your project references are there.
As mentioned, DCOMP is part of the VC++ redistributables (implementing the OpenMP runtime) and is the only truly missing component. All the rest are false reports.
Specifically API-MS-WIN-XXXX.DLL are API-sets - essentially, an extra level of call indirection introduced gradually since Windows 7. Dependency Walker development seemingly halted long before that, and it can't handle API sets properly.
So there is nothing to worry about there. You're not missing anything more.
A better alternative to find the truly needed DLL files that are missing (if that is indeed the problem) is to run Process Monitor and step backwards from the failure, searching for sequences of failed probes for a specific DLL file in all the system path.
I also ran into this problem, but the solution that seems to be a common thread here, and I saw elsewhere on the web, is "[re]install the redistributable package". However, for me that does not work, as the problem arose when running the installer for our product (which installs the redistributable package) to test our shiny new Visual Studio 2015 builds.
The issue came up because the DLL files listed are not located in the Visual Studio install path (for example, C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\redist) and thus had not been added to the install. These api-ms-win-* dlls get installed to a Windows 10 SDK install path as part of the Visual Studio 2015 install (e.g. C:\Program Files (x86)\Windows Kits\10\Redist).
Installing on Windows 10 worked fine, but installing on Windows 7 required adding these DLL files to our product install. For more information, see Update for Universal C Runtime in Windows which describes the addition of these dependencies caused by Visual Studio 2015 and provides downloads for various Windows platforms; also see Introducing the Universal CRT which describes the redesign of the CRT libraries. Of particular interest is item 6 under the section titled Distributing Software that uses the Universal CRT:
Updated September 11, 2015: App-local deployment of the Universal CRT is supported. To obtain the binaries for app-local deployment, install the Windows Software Development Kit (SDK) for Windows 10. The binaries will be installed to C:\Program Files (x86)\Windows Kits\10\Redist\ucrt. You will need to copy all of the DLLs with your app (note that the set of DLL files are necessary is different on different versions of Windows, so you must include all of the DLL files in order for your program to run on all supported versions of Windows).
This contribution does not really answer the initial question, but taking into account the hit-rate of this thread I assume that there are quite a few people dealing with the problem that API-MS-WIN-CORE- libraries cannot be found.
I was able to solve a problem where my application refused to start with the error message that API-MS-WIN-CORE-WINRT-STRING-L1-1-0.DLL is not found by simply updating Visual Studio.
I don't think that my build environment (Windows 7 Pro SP1, Visual Studio Ultimate 2012) was messed up completely, it worked fine for most of my projects. But under some very specific circumstances I got the error message (see below).
After updating Visual Studio 11 from the initial CD-Version (I forgot to look up the version number) to version 11.0.61030.00 Update 4 also the broken project was running again.
This solved the issue for me:
Uninstall the Visual Studio 2010 redistributable package if you have it installed already, and then install Microsoft Windows 7 SDK.
I solved the problem. When I registered the OCX files, I ran it with the Command Window that had been executed as an administrator.
For anybody who came here, but with a Photoshop problem: my solution was to uninstall the MS VC++ redistributable first x86 and 64 both. Then install one appropriate to the Windows version and architecture (86 or 64).
Installation of SQL Server Management Studio 2014 on a freshly installed Windows 7 resolved this problem at our client after a two-day ridiculous battle.
I came here with this problem occurring, after trying a fresh Windows 7 OEM install, upgrading to Windows 10.
After some searching of Microsoft forums and such I found the following solution which worked for me:
Replace C:\Windows10Upgrade\wimgapi.dll with the one from C:\Windows\System32\wimgapi.dll
I suggest also checking how much memory is currently being used.
It turns out that the inability to find these DLL files was the first symptom exhibited when trying to run a program (either run or debug) in Visual Studio.
After over a half hour with much head scratching, searching the web, running Process Monitor, and Task Manager, and depends, a completely different program that had been running since the beginning of time reported that "memory is low; try stopping some programs" or some such. After killing Firefox, Thunderbird, Process Monitor, and depends, everything worked again.
I had the same problem. After spending hours searching on the web, I found a solution for me.
I copied the file combase.dll file (C:\Windows\System32) to the release folder, and it resolved the problem.
Just to confirm answers here, my resolution was to copy the DLL that was not loading AND the ocx file that accompanied it to the system32 folder, that resolved my issue.
I'm using the Visual Studio Setup project. If I go to the properties of the Setup project, it lets me choose which pre-reqs are required, at which point I choose the C++ Redistributable.
On some systems, this works fine - but recently my users are reporting that the install failed because "A newer version of Microsoft Visual C++ 2010 Redistributable has been detected on the machine."
What's the proper way to do this? Is Visual Studio's detection fouled up somehow and unable to detect C++?
Yuck, this is ugly. I was wondering what would happen after Microsoft gave up on the side-by-side install of the runtime DLLs for VS2010. Seems clear, the interwebs are full of this installer error. The biggest victim seems to be Microsoft itself with Streets and Maps failing to install.
I'm not aware of any security patches for it so I have to guess that you haven't updated to SP1 yet. And your customers use a product of a vendor that did. This is a battle that you're always going to lose some day. Do consider taking advantage of the app-local deployment for the DLLs, copying them in the same directory as your main EXE. Simply copy them from the vc/redist directory before putting the setup package together, no need to tick the prerequisite. You'll need:
msvcr100.dll and msvcp100.dll for the regular CRT
atl100.dll if you use ATL
mfc100.dll, mfc100u.dll, mfcm100.dll, mfc100u.dll if you use MFC (u = Unicode, m = managed)
mfc100xxx.dll where xxx is the 3 letter language code if you use MFC on a non-English machine
vcomp100.dll if you use OpenMP in your code.
Only disadvantage is that they won't get updated if there's a security patch. That could be an advantage too, depending on what color glasses you wear. If you're uncomfortable about it then keeping the machine that creates the setup package updated, including enabling Windows Update, is an important requirement.
The default Visual C++ 2010 Redistributable uses a Product Code for detection. So Visual C++ 2010 SP1 Redistributable is not detected as installed. This is why the package tries to install it and fails.
A good solution is to create your own custom prerequisite which uses a better detection criteria. Here is an article which may help you:
http://blogs.msdn.com/b/astebner/archive/2010/05/05/10008146.aspx
Visual Studio setup projects do not support custom prerequisite creation. However, it can be done by manually generating the required manifests.
You can find the manifests structure here: http://msdn.microsoft.com/en-us/library/ms229223(VS.80).aspx
These manifests can be generated automatically with the Bootstrapper Manifest Generator tool.
After generating the package manifests, you can add all these files (including the package) in a separate folder in the Visual Studio prerequisites folder, for example:
C:\Program Files\Microsoft SDKs\Windows\v7.0A\Bootstrapper\Packages\
This way Visual Studio will show the prerequisite in your setup project properties page.
Where can I find some official note, kb article or other documentation describing changes to the Visual Studio 2010 C/C++ runtime linking and deployment policy?
Under Visual Studio 2008 (with the VC90 runtime) a manifest was embedded in native images, and the runtime libraries were deployed as side-by-side assemblies (WinSxS). This caused problems when rebuilding a native exe or library using VS 2008 SP1, in that an updated version of the C++ runtime was required by the embedded manifest.
For VS 2010 and the MSVCR100 runtime version, the policy seems to have changed completely.
The file msvcr100.dll and the other C/C++ runtime libraries are no longer install as SxS assemblies.
When compiling under VS2010, no runtime 'dependency' entry is added to the embedded manifest, meaning that any version of msvcr100.dll might be loaded at runtime.
On machines with .NET 4 installed, the matching runtime is named msvcr100_clr0400.dll, and won't be loaded by native code, though a copy renamed to msvcr100.dll works fine. I think this means any process with C/C++ code will always have two versions of the same C/C++ runtime loaded.
This seems to be a significant change in policy, backtracking from the SxS deployment and manifest dependencies we had under VS 2008. Could anyone shed more light on what changed, and perhaps point to some documentation, a readme or blog post that describes these changes, the motivation and related impact?
It think it's better this way - the strong version manifest and SxS deployment was a nightmare - but I'm surprised at these unexpected and seemingly undocumented changes in VS 2010.
Bonus question: How can I compile my C++/CLI library under VS 2010 to link to msvcr100_clr0400.dll instead of msvcr100.dll? This idea is that the C++/CLI assembly should run with no dependencies other than that installed by .NET 4 (without static linking).
You already answered most of your question, the side-by-side deployment of the CRT was a nightmare that got way too many programmers in trouble. Microsoft agreed and gave up on it for the VS2010 release. It's back to a DLL in c:\windows\system32, named msvcr100.dll. And msvcp100.dll, vcomp100.dll, atl100.dll, mfc100.dll, mfcm100.dll, the other runtime support DLLs. The way it was for VS2003 and earlier editions. Now it is again the user's burden to sort out a DLL Hell problem. The person least likely to be able to do so but they do tend to have a budget to pay for support. Unlike programmers that need to get help from a free web site :)
But you can help, app-local deployment is now again enabled, you can deploy msvcr100.dll in the same directory as your main EXE. That was explicitly checked and forbidden in previous versions. App-local has some niceties, it isolates you from well-meant but unfortunate updates that break your app. Albeit that you are now yourself responsible for getting updates deployed that fix a security hole. If that's uncomfortable then deploy and rely on the copy in the system directory.
Do not try to link to msvr100_clr0400.dll, that's a private copy for use by the CLR. Much like msvcr.dll is a private copy for use by Microsoft DLLs. You don't have the .lib file you need to link to these DLLs.
Just a couple of links about the topic – I hope someone will find them useful:
Visual Studio 2010 changes for VC++ (part 5)
Visual C++ Application: How to use manifests and re-distributable assemblies?
Is there a way to download older versions of Visual C++ Express? I'm particularly interested in Visual C++ 2005 Express (PRIOR SP1) and Visual C++ Toolkit 2003. I tried googling for them, but all the sites linked to microsoft.com, from where microsoft (for some reason) has taken them down.
If you want to link your application against the RTM (pre-SP1) version of the CRT (C runtime), you can apparently do that by defining _USE_RTM_VERSION in your project or on the compiler command line.
Also, deploying the CRT as a private assembly should still work with the SP1 version of the CRT. If that is what you have tried to do, posting more information about what went wrong might help you find a solution.
I also put this in a comment above, but just to make sure you don't miss it: if you're trying to do this because you're having problems with deployment and different versions of dll's, have a look at App does not run with VS 2008 SP1 DLLs, previous version works with RTM versions.
For those of us who find this answer looking for something after 2010 the following link worked as of this posting:
Older Visual Studio Downloads
Microsoft owns it. If they don't have a link anymore, I think you're out of luck.
I'll bet their web crawlers automatically page their lawyers if they ever find a copy on the web.
There is no good reason to run 2005 before SP1, you do realize 2005 /w SP1 compiled code will run the same for the end user, they don't need to install a .NET SP to run the code.
The SP fixes bugs, security holes and various improvements, virtually no functionality changes, you only loose by not using /w the latest SP.
From my personal experience the software compiled with SP1 doesn't simply work, if the end user hasn't installed the redistributables. Without SP1 however it is possible to get the .exe working if you distribute it with the required .dlls.