I am loading my project into Visual Studio 2019 IDE. When I go into the forms designer within the IDE
Visual Studio Forms Designer has been gives me the following error:
An attempt was made to load an assembly from a network location which would have caused the assembly to be sandboxed in previous versions by default, so this load may be dangerous. If this load is not intended to sandbox the assembly, please enable the loadFromRemoteSources switch.
There is no code associated with it. All referenced DLLs haven't changed.
Has anyone else experienced this or have a work around as the Google searches I have done have given me to help. Is there a way to narrow down the error? I have also checked all the security dlls to make sure they are correct and are referenced locally to help. Maybe something to do with the CAS policy?
I have also tried on my installed versions of 2012, 2015, & 2017.
UPDATE: Updated the error above as I had the wrong error added.
I am facing the following (fairly common) problem: I am running my program in Debug mode in VS2010 and/or VS2012, but at startup it crashes, saying:
The programme can't start because MSVCP100D.dll is missing from your
computer. Try reinstalling the program to fix this problem.
Now I found a number of possible solutions, but none of them work for me:
Compile with /MTd instead of /MDd: actually this does solve the problem, but I am not allowed to: my program is part of a bigger program, and /MD[d] is mandatory.
Install the VS 2010 Redistributable package: This doesn't work because I have VS 2012 installed, so this installer tells me: "A newer version of Microsoft Visual C++ 2010 Redistributable has been detected on the machine."
Finding, dragging and dropping a version of MSVCP100D.dll into the correct directory: I am not dropping unknown DLLs into places where they might interfere with other things.
Last resort: reinstalling VS2010/VS2012: possible, but as it would also mean reinstalling lots of other packages and plugins I need, I'd like to avoid this if it's not absolutely necessary.
Are there any other options left?
The Visual Studio REDIST packages never deploy the DEBUG versions of the CRT files. This is by design.
With VS 2012 or later, the easiest way to deploy the DEUBG versions of the CRT is to install the "Remote Debugging Tools" package on your test machines.
For VS 2012, the latest Remote Debugging Tools package is here
For VS 2013, the latest Remote Debugging Tools package is here.
Another option is to just use application local deployment of the DLL (i.e. copy it into your app directory). Again this is only for testing purposes. For actual deployment of your application, you are required to use the non-debug versions of the CRT.
If this error is happening on your development machine, however, then you have other problems because with VS 2012 installed, you should have the VS 2012 DEBUG CRT on that machine.
UPDATE:: Sorry, I would have expected the debug CRT DLLs to be included in the remote debugging tools package along with the remote debugger bits and the Direct3D 11 Debug Device. Alas, it's not. See Preparing a Test Machine To Run a Debug Executable. You have to either use the MSMs in Program Files (x86) directory in \Common Files\Merge Modules or copy the DLL-side-by-side from Program Files (x86) directory in \Microsoft Visual Studio <version>\VC\redist\Debug_NonRedist\. The VS Team probably assumed you would have already been doing that, but I'll suggest to them to roll it into the remote tools package.
I had a similar issue (the project made in VS 2012 but I was running VS2013) and resolved it by:
Open the project (or the solution ) in VS2013(or the newer one)
Open Project menu and select "Retarget the project" option (it was the first option but after applying it, this option vanished).
Rebuild your solution.
I am new to openCV and C++ and had the same problem using openCV 2.4.10 with Visual Studio Express 2013 on a Windows 7, 32-bit platform. If I made a simple program without using OpenCV, the program ran but when I used OpenCV I got the missing DLL error.
This post made things clear:
I guess the problem I had was not with my Visual Studio but my OpenCV. The OpenCV was compiled on a version of visual studio which required MSVCP110.dll. I could have tried another version of OpenCV or compiled OpenCV again using VS2013 but I was short of time. Instead, I found the dll file elsewhere and placed it in my system32 folder (not sure if that's recommended). This fixed the problem. However as #slater mentioned, I won't recommend downloading the dll from external website due to security issues.
This is a debug runtime DLL. If (and ONLY if!) you just want to run the debug build of your own application on a system without Visual Studio installed, then you can find the missing DLLs in
C:\Windows\System32 (for 64-bit builds)
C:\Windows\SysWOW64 (for 32-bit builds)
Just keep copying DLLs until your executable will run.
If this is NOT what you are trying to do, refer to https://stackoverflow.com/a/27386721/2279059, which is the CORRECT, but less practical answer.
I had the same problem, I found out that the cause is that I used dll compiled with VS2012 in a VS2013 project. JUST downloaded the missing dll and put it in my linker path and wala: the program worked. I downloaded it from http://www.dll-files.com/.
Particulars: My program was working in in release mode but not in the debug mode as it says the MSVCP110D.dll is missing. My code was an opencv image processing program. I put the missing dll in opencv linker path in the VS2013 project options.
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 am working in Visual Studio 2012 and I was missing the "Microsoft.Office.Interop.Excel" assembly. After downloading the missing exe from http://www.microsoft.com/en-us/download/details.aspx?id=3508,
the instructions are as follows:
"Wrap the O2010pia.msi file in another setup package through Visual Studio or other Windows Installer aware setup editor"
I ran the exe, but the missing assembly is still missing from Visual Studio.
I am quite new to development and after googling for a while, I am no closer to understanding what this means. I would greatly appreciate some insight.
You did not read it correctly. The page says "Use one of the following installation methods". The one you are asking about is what you do when you create an installer for your program so the PIA also gets installed on your client's machine. You are not there yet.
You should not be doing this anymore, PIAs are outdated since VS2010. Replaced by the "Embed interop types" feature, aka "NoPIA". Project, Add Reference, click COM, select the "Microsoft Excel xx.x Object Library" entry where xx.x is the version number of Office you've got installed on your machine. This automatically adds the Microsoft.Office.Core and Microsoft.Office.Interop.Excel references to your project. With their Embed Interop Types property set to True so you don't have to install anything on the client's machine.
If you don't see this entry then you will need to install Office on your machine. Required to add the reference and to debug and test your code.
I tried to start Visual Studio and it said: "This application has failed to start because ATL100.DLL was not found. Re-installing the application may fix this problem".
I don't want to reinstall it (time consuming).
I also just uninstalled all the C++ stuff (I don't do any C++ work, so I got rid of it).
So does anyone know?
If the ATL100.DLL is missing you're likely just seeing the first missing file of a now corrupted installation. If you don't want to do a full reinstall you can attempt to repair the installation from your install source but there's no easy fix for this.
http://msdn.microsoft.com/en-us/library/e2h7fzkw.aspx#repair
You need to have the MS VC++ 2010 redistributable pack installed on the client machine.
You should also link your program against the release version of the redist pack and not distribute a debug version of the VC++ runtime (msvcr100d.dll) as its release counterpart is part of the VS2010 redistributable pack, as described here. The ATL100.dll is also part of that pack. MS has strict policies about which dll can be distributed with the application. A previous post about DWMAPI.DLL will help to sort out that problem.
source:iodocs.com