I have built a program using Visual studio 2013 in visual basic. I am using a set of DLLs to communicate to some external hardware. The computer I developed the software on is a Win7 64bit machine and I can compile and run the software with no hiccups on it. I also have another computer (Surface Pro 3 64bit) that I use to test my software on and that works as well. Basically I just locate the debug directory of the development computer and copy the EXE and support DLLs to the new computer and run the EXE. This all works with my surface pro 3 computer.
My company purchased some other surface pro 3 computers for our production department and I am trying to get the software running on those as well. I do the same thing. Grab the EXE and support DLLs from the debug directory of the development computer. Except on these computers when I run the software program it tells me it can't find the DLL for the program. The DLL is sitting right in the application's folder, yet it says it can't find it.
I have tried multiple things, like publishing the software and including the DLLs in the installation, then running the installation on the "problem" computers. This still doesn't work. Same issue, it can't find the DLL.
This could be a number of things:
Incorrect version of .NET - do the new computers have the target version of .NET installed on them?
A required DLL is not being found, you should enable assembly bind failure logging and try again - How to enable assembly bind failure logging (Fusion) in .NET
So it turns out that the DLL I was referencing requires the VC++ redistributable packages to be installed on the computer. I downloaded and installed these on all of the problem computers and now the software recognizes the DLL and run.
I googled a lot but no answer found. My project is a plugin of a .Net application.
The project was started 2 years ago on WinXp 32bit platform. A 32bit COM component was used for some reasons. Because I have the source codes, I can debug into the COM component freely. Everything is fantastic at that time.
At the beginning of this year, my project is upgrading to x64 because of memory benefit. And the x64 version of the COM component is also ready. Everything works fine except debugging.
Now I can't debug into the COM dlls anymore. There is no any COM dll or interop dll listed in the Debug\Windows\Modules window. Thus, I can't specify the symbol directory for dll.
I know there is no mix mode support for debugging. So When I attach the exe, I select "Native".
I tried VS 2005, VS 2008 and VS 2010, all of them give me the same issue. Then I thought may be it is because x64. So I use the old 32 bit code which was debugged fine on WinXP to try again. But I still can't debug either.
Any idea? Is this because of the win7 platform? Or if I need to add some entries in the exe's config file?
Thanks in advance.
Perhaps, I should ask in this way:
What are the rules for the debugger to decide which module should be in the module list? If you compare the module list between ProcessExplorer and VS, you would find these two are not the same.
I have a client/server app which I have been developing on a single PC. Now it needs two serial ports, so I borrowed a PC from a friend.
When I build my app and try to run or debug it (whether in the Delphi IDE or from Windows File manager), it errors "The application was unable to start correctly (0xc000007b)".
Googling doesn't bring up much, but seems to indicate that this is nothing Delphi specific and happens with other apps. It seems to be caused by calling into a 32 bit DLL from a 64 bit app or vice versa.
both PCs are Windows 7, 64 bit
both have Delphi Xe2 starter edition which can only handle 32 bits
The app runs fine on my PC, but not on my friend's
Other Delphi apps run just fine on both PCs
Can anyone give me a hint as to how to track this down?
Normally we get the 0xC000007B error-code (which means STATUS_INVALID_IMAGE_FORMAT), if:
If a 32-bit app tried to load a 64-bit DLL.
Or if a 64-bit app tried to load a 32-bit DLL.
Or if a 64-bit app tried to run on a 32-bit Windows.
To really know, I would suggest to test whether there is a problem between your application and its dependencies using dependency walker
Note that all you need to do is open your App using said tool, and issues appear as red log-entries at buttom of screen.
(At least, at time of writting, namely 2022)
Also, make sure you run the correct version of Dependency Walker, for example, the x86 version will display incorrect results when openning x64 binaries.
A load time dependency could not be resolved. The easiest way to debug this is to use Dependency Walker. Use the Profile option to get diagnostics output of the load process. This will identify the point of failure and should guide you to a solution.
The most common cause of this error is trying to load a 64 bit DLL into a 32 bit process, or vice versa.
I tried all the things specified here and found yet another answer. I had to compile my application with 32-bit DLLs. I had built the libraries both in 32-bit and 64-bit but had my PATH set to 64-bit libraries. After I recompiled my application (with a number of changes in my code as well) I got this dreaded error and struggled for two days. Finally, after trying a number of other things, I changed my PATH to have the 32-bit DLLs before the 64-bit DLLs (they have the same names). And it worked. I am just adding it here for completeness.
It is a missing dll.
Possibly, your dll that works with com ports have an unresolved dll dependence.
You can use dependency walker and windows debugger. Check all of the mfc library, for example. Also, you can use nrCommlib - it is great components to work with com ports.
It has been mentioned in earlier answers that using dependency walker is the way to go, in my case (my application keeps failing with the error code), dependency walker showed a few dll that are NOT relevant!
Finally figured out that I can run profiling by going to "profile" menu and it will run the application and stop at the exact dll that's cause the problem! I found out a 32bit dll was picked because of path and fixed it.
I experienced the same problem developing a client-server app using Microsoft Visual Studio 2012.
If you used Visual Studio to develop the app, you must make sure the new (i.e. the computer that the software was not developed on) has the appropriate Microsoft Visual C++ Redistributable Package. By appropriate, you need the right year and bit version (i.e. x86 for 32 bit and x64 for 64 bit) of the Visual C++ Redistributable Package.
The Visual C++ Redistributable Packages install run-time components that are required to run C++ applications built using Visual Studio.
Here is a link to the Visual C++ Redistributable for Visual Studio 2015 .
You can check what versions are installed by going to Control Panel -> Programs -> Programs and Features.
Here's how I got this error and fixed it:
1) I developed a 32 bit application using Visual Studio 2012 on my computer.
Let's call my computer ComputerA.
2) I installed the .exe and the related files on a different computer we'll call ComputerB.
3) On ComputerB, I ran the .exe and got the error message.
4) On ComputerB, I looked at the Programs and Features and didn't see Visual C++ 2012 Redistributable (x64).
5) On ComputerB, I googled for Visual C++ 2012 Redistributable and selected and installed the x64 version.
6) On ComputerB, I ran the .exe on ComputerB and did not receive the error message.
I recently had an issue where I was developing an application (that used a serial port) and it worked on all the machines I tested it on but a few people were getting this error.
It turns out all the machines that the error happened on were running Win7 x64 and had NEVER ONCE been updated.
Running a Windows update fixed all of the machines in my particular case.
Actually this error indicates to an invalid image format. However, why this is happening and what the error code usually means? Actually this could be appear when you are trying to run a program that is made for or intended to work with a 64 bit Windows operating system, but your computer is running on 32 bit Operating system.
Possible Reasons:
Microsoft Visual C++
Need to restart
DirectX
.NET Framework
Need to Re-Install
Need to Run the application as an administrator
Source: http://www.solveinweb.com/solved-the-application-was-unable-to-start-correctly-0xc000007b-click-ok-to-close-the-application/
This may be a case where debugging the debugger might be useful. Essentially if you follow the instructions here you can run two ide's and one will debug into the other. If you un your application in one, you can sometimes catch errors that you otherwise miss. Its worth a try.
I have seen the error trying to run VC++ debug executable on a machine which did not have Visual C++ installed. Building a release version and using that fixed it.
In my case the error occurred when I renamed a DLL after building it (using Visual Studio 2015), so that it fits the name expected by an executable, which depended on the DLL. After the renaming the list of exported symbols displayed by Dependency Walker was empty, and the said error message "The application was unable to start correctly" was displayed.
So it could be fixed by changing the output file name in the Visual Studio linker options.
You can have this if you are trying to manifest your application that it has a dependancy on the Microsoft.Windows.Common-Controls assembly. You do this when you want to load Version 6 of the common controls library - so that visual styles are applied to common controls.
You probably followed Microsoft's original documentation way back from Windows XP days, and added the following to your application's manifest:
<!-- Dependancy on Common Controls version 6 -->
<dependency>
<dependentAssembly>
<assemblyIdentity
type="win32"
name="Microsoft.Windows.Common-Controls"
version="6.0.0.0"
processorArchitecture="X86"
publicKeyToken="6595b64144ccf1df"
language="*"/>
</dependentAssembly>
</dependency>
Windows XP is no longer the OS, and you're no longer a 32-bit application. In the intervening 17 years Microsoft updated their documentation; now it's time for you to update your manifest:
<!-- Dependancy on Common Controls version 6 -->
<dependency>
<dependentAssembly>
<assemblyIdentity
type="win32"
name="Microsoft.Windows.Common-Controls"
version="6.0.0.0"
processorArchitecture="*"
publicKeyToken="6595b64144ccf1df"
language="*"/>
</dependentAssembly>
</dependency>
Raymond Chen has a lovely history of the Common Controls:
The history of the Windows XP common controls (archive)
The main problem, of course, is that a DLL file is missing, or, even more likely, corrupt. If this is the case, then I have some pretty good ideas (especially if you've downloaded and installed a DLL manually!)...
TLDR: Delete every manually copy/pasted DLL you've done, uninstall old redistributable installs, and reinstall new redistributables for both 32-bit and 64-bit installs.
What To Do
This solution of copying/pasting missing DLL's into system32, etc., used to work since I can remember in the 1990's, but it doesn't seem to work anymore (2020). So if you run into this problem recently, I suggest:
Within windows\system32 and windows\SysWOW64, delete all files that match ms*.dll, that the operating system will allow you delete as admin.
Uninstall all Visual C++ Redistributables that you have with Windows. This prevents the "You already have this!" dialogue showing up upon reinstall, as detailed in the next step when we re-install.
Reinstall the 2015-2019 Visual C++ Redistributable from a regularly available download site. If this does not work, download and install the others, but personally, the 2015-2019 covered everything for me. Regardless of your machine, install both x32 and x64 packages! (All Download Links: Collected VC++ Download Links; MSVCR120.dll Fix; MFC140U.dll Fix.)
How You Know It's Working
There's a lot of variation in coders experiencing this, so, the idea that there's one single, possible solution is often discarded, but let's be positive!
If deleting the matching ms*.dll files worked, then you will no longer get an error about error code 0xc000007b. Instead, you'll get a message about a missing .dll. This tells you that you're hitting the right code path!
If installing the redistributable works, then certain popular, DLL files should appear in the above-mentioned system32 and SysWO64 folders. For instance: MSVCR120.dll, MSVCR140.dll, MSVCR100.dll, MSVCP100.dll, MSVCP120.dll, MSVCP140.dll, and friends.
Last, Possible Best Chances
Sometimes things don't work according to plan (as we all in the Windows world know). You can also try the following!
Open the "Turn Windows Features on or off" tab in Windows (supported in Windows 8-10). Uncheck the .NET Framework installations. You'll see a small installation go by.
Restart the system. Go to the above feature again, recheck .NET Framework, and click "okay". If this works, you'll see a "installing and updating .NET framework" message that takes maybe a minute or so to go by. Once this is done, I recommend a reboot again.
Good luck!
Just solved this problem for my personal project (thanks to Dries for that). For me it was because the project path was too long. After saving the .sln to a shorter path (C:/MyProjects) and compiling from there it ran without the error.
Also download and unzip "Dependencies" into same folder where you put the wget.exe from
http://gnuwin32.sourceforge.net/packages/wget.htm
You will then have some lib*.dll files as well as wget.exe in the same folder and it should work fine.
(I also answered here https://superuser.com/a/873531/146668 which I originally found.)
I just ran into this issue. I searched for "C++" under my "Apps & Features" in Windows 10 control panel and noticed that some kind of update had just run a few days prior and installed VC++ Redistributable 2012-2017. The app that was running into the error message only required VC++ 2010. I uninstalled all of them and then reinstalled just 2010 x86/x64, and the error went away and the application functioned as expected.
That can happen if for some reason a x86 resource is loaded from a x64 machine. To avoid that explicitly, add this preprocessor directive to stdafx.h (of course, in my example the problematic resource is Windows Common Controls DLL.
#if defined(_WIN64)
#pragma comment(linker, "\"/manifestdependency:type='win32' name='Microsoft.Windows.Common-Controls' version='6.0.0.0' processorArchitecture='amd64' publicKeyToken='6595b64144ccf1df'\"")
#endif
It is possible that you have multiple versions of the dll(s) on your system. You can search your system to find out. The issue may be solved by simply changing the order of the directories in your path. This was my issue. (Cannot run Qt Creator GUI outside of Qt. "The application was unable to start correctly (0xc000007b)" error)
I ran into this issue when fetching code from my repository and compiling on a new machine. Copying over the entire repository and then compiling resulted in an executable which worked. Turns out a 32bit DLL accidentally wasn't checked in. As the people above state, use "Dependency Walker" to figure out where it goes wrong.
To make it more clear what to look for see the below screenshot, with in the background the exe trying to load the wrong DLL (notice the '64') resulting in "the application was unable to start correctly 0xc00007b" and in the foreground the exe which was simply copied over (which included the correct DLL).
I came here when I was searching for: "golang Windows (0xc00007b)"
I have an app written in Golang, which uses iconv. It worked on my machine, but not in someone else's machine.
The first error was the missing DLL: libiconv-2.dll, so I guess they downloaded it on the internet but it was the 32 bit and not 64 bit version, so the 0xc00007b error appeared.
I searched the DLL on my system but I did not have success until I searched on MinGW 64 path which in my case is: C:\msys64\mingw64\bin
The solution was to distribute the DLL with the .exe, which was in the MinGW folder.
I have a problem running my application on other machines.
I am developing with Visual Studio 2008 in a Win7 x64 machine.
The solution contains several C# projects (the main application is written in C#, all others are library projects) and two c++/CLI libraries. The C++ libraries are Win32 and all C# projects are set to x86 target processor. No third party libraries used. Framework used is v3.5.
The application builds and runs fine on my machine.
I copied the whole "bin\release" folder to a Win7 x86 machine and it ran fine, too.
But when I tried on a XP x86 system, it did not start. No error message, not even showing up shortly in the task manager. The XP system has all updates installed, all available .NET frameworks installed and all Visual Studio Runtimes installed.
I checked with DependencyWalker and the only missing dlls are "IEShim.dll" and "wer.dll" which are only for Vista or higher.
I tried another of my applications that's not using C++ libraries and they work fine. So I guess I am doing something wrong deploying the C++ dlls.
Registering the C++ dlls with "regsvr32" failed with a "DllEntryPoint" not found message. Registering with "regasm" was successful, but had no effect.
What is it that I am missing?
Well, seems like I was a bit hasty stating "no third party components".
Actually it was the SQL Server Compact who was missing its runtime.
I have a c++/cli dll that I load at runtime and which works great in debug mode. If I try and load the dll in release mode it fails to load stating that one or more dependencies are missing. If I run depends against it I am missing MSVCR90.DLL from MSVCM90.DLL. If I check the debug version of the dll it also has the missing dependency, but against the debug (D) version.
I have made sure debug/release embed the manifest file. I read something about there being issues with the app loading the dll being build as Any CPU and the dll being built as x86, but I don't see how to set them both to x86.
I am using VS2010.
Anyway, I've been messing around for a while now and have no idea what is wrong. I'm sure someone out there knows what is going on. Let me know if I need to include additional info.
alt text http://www.freeimagehosting.net/uploads/fb31c0e256.png
UPDATE:
This ended up being the resolution to my problem: http://social.msdn.microsoft.com/Forums/en-US/vclanguage/thread/07794679-159b-4363-ae94-a68fe258d827
MSVCR90 is the runtime for Visual Studio 2008. If you are running your application on your development PC, then you should have the debug and release runtimes installed (as part of Visual Studio) but it is possible something has gone awry with your install, or that VS2010 doesn't actually include the older runtimes. If you're trying to run the Release on a different PC, then it just needs the runtime installed.
Either way, you may be able to fix it by installing the Visual Studio 2008 redistributable - but make sure you get the right download for your PC (x86 or x64).
In previous versions of VS, you needed the runtime for the version you were compiling with, so if VS2010 follows this precedent you'd need MSVCR100, not MSVCR90 - which suggests that you may not have recompiled the dll with VS2010 - doing so may be another approach to get it running on your PC (using the redist that is in your VS2010 install) but beware that you will still need other users to install the appropriate (VS2010) redistributable on their PC.
As for "Any CPU" versus "x86", this is a problem only on a 64-bit computer. On those systems a 64-bit application can't link dynamically to 32-bit dlls. If you compile your application as "Any CPU" it will be JIT compiled to be 64-bit on an 64-bit OS, so will crash if it tries to call any 32-bit dlls directly. THe solution is to build the application targeting "x86" as that forces the JIT compiler to generate 32-bit code (even on a 64-bit machine) and thus ensures compatibility with the dll you wish to call. If the DLL is a managed assembly, then you can use Any CPU on both the app an dll as they will both be JITted to the same format.
It happened to me something similar running a website in Vistual Studio 2012, after migrating from Visual Studio 2010. The error message was saying that MSVCR90.DLL was missing. The solution was:
1) Delete the folder _bindeployable located at the project path.
2) Rebuild.
I hope it helps.