An Application Has Made An Attempt To Load The C Runtime Library Incorrectly

1. Maya R6034

Question: Q: An application has made an attempt to load the C runtime library incorrectly, as a result itunes was not installed correctly. An application has made an attempt to load the C runtime library incorrectly, as a result itunes was not installed incorrectly after numerous attempts.

Claus,The sample you attached in the bug is building a dll. For dlls, the manifest must be embedded on any operating system (to be taken into account by the loader).So, if I add:mt.exe -outputresource:Assembly.dll;#2 -manifest Assembly.dll.manifestto the makefile after the link command, it does the job.Note that in the link command, you have passed a keyfile.

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• Microsoft Visual C Runtime Library Runtime Error! R6034 An application has made an attempt to load the C runtime library incorrectly.

So, running mt.exe afterwards will invalidate the signing. We recently downloaded the RC build of Whidbey, and ran into a similar issue on Windows XP x64 - during the build process, we run regasm, which displays this error message.We could not really find documentation on this problem so far, so we looked up the CRT source code and found a function called checkmanifest which raises this error message. Apparently, it checks that the instance of the CRT which it is part of was loaded through Fusion under the guidance of manifest files (on the most recent OS versions, that is), and if that is not the case, it bails out.In our case, regasm actually loads two instances of the CRT into its process - one of them comes from a side-by-side (SxS) directory, so it was probably loaded through the manifest mechanism; the other instance, however, comes from a local build directory where we store a copy of the DLL.

That copy, however, also has a manifest, so we're actually puzzled why we get the error message. I just discovered Nikola's blog, and it does seem to contain some interesting information on this area, but any additional hints or pointers are most welcome.Claushttp://www.clausbrod.de.

I've found one interesting difference between the application that works and the one that doesn't - both have external manifest files that seem to be fine (just CRT and MFC, correct versions, etc.) The application that doesn't work has a manifest resource (correct ID) that only lists Microsoft.Windows.Common-Controls 6.0.0.0. This is missing from from the external manifest file. Ernie: Thanks for the details on your observations; we'll check the manifest situation again on our system to see whether there are any similarities to your situation.George: We already debugged into checkmanifest. It calls FindActCtxSectionString to verify whether the runtime library (MSVCR80.DLL) was in fact loaded through a manifest file. FindActCtxSectionString claims that MSVCR80.DLL wasn't loaded through the manifest, and so checkmanifest fails, causing the calling code to display the R6034 error message.Earlier today, we submitted a bug report at When we submitted the report, we did not have repro data which we can share in public, which is why we didn't attach the test data there. We are, however, working on a simple test case which we will hopefully be able to share tomorrow.Claus Brod.

My problem is now solved.Someone on our team had added a hand coded manifest to the resource file for this application, it had the 6.0.0.0 Microsoft.Windows.Common-Controls reference in it. I suspect that windowx XP x64 was using the internal manifest and ignoring the manifest file, thus reporting that the runtime was being loaded w/ out a manifest.

Removing this resource has solved the problem.From it indicates XP should respect manifest file first, then resource and 2003 server the opposite. Since the x64 version of XP came out with 2003 SP1, I suspect they both respect the resource first.This thread did wonders helping me track this down.Thanx guys. Claus,The sample you attached in the bug is building a dll. For dlls, the manifest must be embedded on any operating system (to be taken into account by the loader).So, if I add:mt.exe -outputresource:Assembly.dll;#2 -manifest Assembly.dll.manifestto the makefile after the link command, it does the job.Note that in the link command, you have passed a keyfile. So, running mt.exe afterwards will invalidate the signing. Hello,I've the same problem that Claus had:where my application loads: ' two instances of the CRT into its process - one of them comes from a side-by-side (SxS) directory, so it was probably loaded through the manifest mechanism; the other instance, however, comes from a local build directory'.When i tried to emped manifest to this application, I got the following error:'Unable to start program 'application.exe'.This application has failed to start because of the application configuration is incorrect.

Review the manifest file for possible errors.' Here is the content of the manifest file:'also the applicaiton is mixed mode.Thanks,Mostafa. I am trying to write an add-in DLL to extend the Mozilla Firefox browser, and am getting the R6034 'An application has made an attempt to load the C runtime library incorrectly' error when Firefox starts up with my DLL installed. My DLL has a manifest which correctly references the dependency on the Microsoft.VC80.CRT assembly. However the Firefox executable does not have a dependency on Microsoft.VC80.CRT, though it does have an embedded manifest, which appears to be correct.

It appears that when my DLL is installed, Firefox tries the load the VC8 runtime when it starts up, which of course produces the R6034 error. Does anyone have any suggestions as to what to do here?If I put an external firefox.exe.manifest file into the folder where the firefox.exe executable resides, the error goes away, but I can't do that when redistributing my DLL. I also have no control over the Firefox executable. So what can I do in this scenario, where I have a DLL that depends on the Microsoft.VC80.CRT assembly (and which has a correct manifest that reflects that), but which is being used by an executable (Firefox, over which I have no control) that doesn't have the VC80 runtime dependency, and whose embedded manifest does not refer to Microsoft.VC80.CRT?

Maya R6034

Hi,I have a problem that is more than a bit frustarting. I have a collection of dlls (namely ORBacus dlls) which I managed to compile with VS2005.

There exist a collection of programs in VC6. I should run these programs (ones in VC6) with the new dlls(Orbacus dlls compiled with VS2005).To test whether the problem is with dlls or the application, I've wrote a test program with VS2005 which do the same, and it works correctly.I've got the same sort of error messages pointed out in this thread.I've tested either manifast embeded in dlls, or separated from them. Although I knew that it would not work, I also tested dllls without any manifast at all.When I put these MSVC80. Dlls beside my exe. An assertion with number R6034 will be presented to me saying that an application is trying to loasd a dll without its manifast. After that all things will go wrong.I've also tested all sorted possible solution suggested in this thread.Thanks in advance,Mohamad Ali Honarpisheh.

DexterDurai,Are you referring to Wengyik Yeong entry?If so, could you try deploying the VC runtime to the winsxs folder using the redist msms or the vcredist?The real question is why Fire Fox is trying to load the CRT dlls directly. Most likely this happens only when the dlls are the same folder as the exe.You could also try deploying the VC runtime to a subfolder that has the same name as the assembly and see if exe still tries loading the CRT.Thanks,George MilekaVisual C Libraries.

I'm using python 2.7.9 and encountered a problem when installing pygtk.It displayed 'Runtime error!R6034 An application has made an attempt to load the C runtime library incorrectly' when installing numpy/scipy after pygtk being installed.I tried to figure it out by searching it in stackoverflow and found two similar questions: and.So following the first one, I deleted the path corresponding to msvcr90.dll, however, it still cannot work. Then I chose to simply delete msvcr90.dll; at this time, this error wasn't presented when installing numpy/scipy, however, these two modules cannot work when simply typing 'importing numpy/scipy'.I also renamed gtk-2.0 following the second one. Then numpy and scipy can be successfully installed.

But it displayed 'Error processing line 3 of C:Python27libsite-packagespygtk.pth' when installing matplotlib using pip.I'm really confused about it. Can anybody provide some methods to fix it? I've installed Python and PyGTK on 5+ machines, at least two of them brand new, clean builds of Win 7.I've got the An application has made an attempt to load the C runtime library incorrectly error whenever I install a Python package as a windows installer (rather than using pip) on all these machines.

It's annoying, but has never made a jot of difference, both Python and Gtk function correctly.You've deleted msvcr90.dll, and that is why you get your Error processing line 3. If you look at this file, you'll see that line 3 is import runtime, and if you look further into the 'runtime' package, you'll see that this then tries to find the missing dll.I think your best bet is to try to restore the missing file. If it's still in your recycle bin - great!If not, the best thing to do is.