During execution (run-time) if the assembly is found to be signed and deployed in GAC the CLR automatically picks up the assembly from the GAC instead of the DLL referenced during design time in VS. In case the developer has deleted the original DLL or don't have it for some reason, there is a way to get the DLL file from GAC. Follow the following steps to copy DLL from GAC
how to copy a dll from assembly folder
Download: https://urlca.com/2vGcHC
Easy way I have found is to open the command prompt and browse through the folder you mention until you find the DLL you want - you can then user the copy command to get it out. Windows Explorer has a "helpful" special view of this folder.
Open RUN then type %windir%\assembly\GAC_MSIL, this will open your dlls in folders' view you can then navigate to your dll named folder and open it, you will find your dll file and copy it easily
AnswerTo manually install a new DLL file into the GAC (NS6 physical path is %windir%\assembly\gac, NS7 uses %windir%\assembly\gac_msil): Stop all Altiris services
Stop IIS
Open Windows Explorer and navigate to the %WINDIR%\Assembly folder (this is not the physical path, but is a view into the combined GACs)Copy and Paste (Drag and drop) the new DLL file into the Assembly folder
Occassionally, this may encounter an error (due to the file being locked by some process that was not shutdown) which Explorer does not report back. Usually if the file is locked Explorer will tell you, but there are times where it does not. To workaround this:
But I don't have a VS2008 tool (i click start, all programs, and can only select VS2008). So I tried dragging the dll file to the GAC folder using explorer by - c:\windows\assembly but it won't allow me to drop it. How do I do this?
3.7 Note that if you need to uninstall the same assembly from the GAC, the same InstallReferenceGuid and "id" and "Data" values must be used. Also recommended when you uninstall an assembly is to use a fully qualified name to specify the assembly, e.g. "name, Version=xx, Culture=xx, PublicKeyToken=xx, ProcessorArchitecture=xx". See Junfeng's comments for the AssemblyCache.UninstallAssembly() method for more details.
Use this when you want to copy main assembly's config file and also its dependencies (except merged and embedded), along with their config files.Open your SmartAssembly project file in a text editor and within the node add a element. For example:
Also note that custom configuration files sample.config and some_configuration.json were not copied. That's because they're not directly associated with the input assembly nor its dependencies. Follow the instruction below (Option 2) to learn how to copy these files.
Democracy is under attack. Ukraine is the victim under fire right now, but imperialism won't stop there. I urge you to help - click this for details!Home Posts Tech DevTips How to copy dependent assemblies to the bin folder on build?How to copy dependent assemblies to the bin folder on build?March 15, 2022November 2, 2022 Antti K. KoskelaDevTips, TechThis post was most recently updated on November 2nd, 2022.
Strong name for an assembly guarantees the uniqueness by unqiue key pairs. Because an assembly generated with a strong name consist of unique identity with its public key, version number, text name, culture information and a digital signature. It guarantees that no one can generate the same assembly with same private key and protects an assembly from versioning lineage and tampering. On passing to .NET framework it provides strong integrity check or security checks and guarantees that the contents of an assembly have not been changed since it was built.
1st Method Just drag and drop/ CopyPaste an assembly to an assembly folder. To find an assembly folder first you need to check your windows installation drive, In my case my windows is installed in "C-drive" so its "C" drive C:\WINDOWS\assembly.
Step 5 - Move the DLL to common folder In this step we will move the "CommonGac" project DLL to a new folder "GacCommon" which we have created in E-drive. Step 6 - Deploy DLL in GAC To deploy an assembly or DLL in global assembly cache we will use our visual studio command prompt and our GAC command. i.e. gacutil -i assemblyname gacutil -i CommonGac.dll
In my application I actually didn't need this. Rather than dealing with Private Bin paths I've always used Appdomain.AssemblyResolve which is fired whenever an assembly cannot be resolved. If you have a single folder it's very easy to find assemblies because you know where to look for any missing references that the application can't resolve on its own.
To put this in perspective here is how addins are loaded. The original addin loader runs through all assemblies in the Addins folder and checks for the Addin interface and if found loads the assembly with Assembly.LoadFrom().
The assembly typically loads without a problem, but the problem usually comes from any dependent assemblies that get loaded when scanning the assembly for types that return or pass dependent assembly types.
But, when running asm.GetTypes(); additional types and dependencies are accessed and that triggers an assembly load attempt from .NET natively. If there's no additional probing or assembly resolve the code bombs.
Note that the AssemblyResolve handler has a args.RequestingAssembly property which maddeningly is always blank. If this value actually gave me the requesting or calling assembly things would be easy since I could just try loading from the same folder. But alas the value is always empty, so no go.
In the end I ended up using an extension of what worked initially which is simply to load the assembly from disk. This time around I don't know the exact folder, but I know what the base folder is so I can simply scan the directory hierarchy for the DLLs. Yes, this definitely has some overhead, but after all the false starts this just seems to be the most reliable way to ensure assemblies are found and matched.
This works with everything I've thrown at it thus far so this seems like a good solution. There's definitely some overhead in this - both searching for the assemblies and then also from all the assembly preloading that occurs because of the type scanning in order to find the addin interface - which effectively preloads all used dependencies.
No discussion of Add ins and assembly loading would be complete without mentioning AppDomains and loading Addins separately. A lot of the issues I've described here could be mitigated by using a custom AppDomain and explicitly setting up the private bin path before load time by pre-scanning the folders.
This may sound like a fairly esoteric problem, but while searching for solutions around not getting Assembly resolve errors and loading of assemblies from multiple folders, there are a lot of people running into these same problems. There are a lot of hacky workarounds and this one is just one more in a long line of hacks. But for me at least this one has been reliably working - in fact so much so I've retrofitted it to two other applications that were previously guessing at paths.
I had done a lot of this same kind of stuff quite some time ago when we were building the infamous Umbraco version 5. I wrote quite a bit about this, plus we had to support Med Trust which added a ton more complexity. We also tried MEF but it turns out (at least at the time) that MEF locked assemblies outside of the /bin because those assemblies aren't shadow copied to the ASP.NET temp folder where all /bin files actually end up and are used. Might be of interest so here's the post I wrote about all that: -a-plugin-framework-in-aspnet-with-medium-trust/ and more recently a follow up post about ASP.NET Core and how much easier it is to do this kind of thing: -assembly-loading-with-aspnet-core/
My trajectory has been MEF, load assemblies from the same domain, from different appdomains and back to the same domain. For me this is the most easy, not overkill and maintainable solution. Currently I prefer to use a mixed approach with a host that act as the addin assembly referencing the specific module as a nuget package.
If you haven't already done so, obtain the AWSSDK assemblies, which places the assemblies in some local download or installation folder. Copy the DLL files for the required assemblies from that download folder into your project (into the AwsAssemblies folder, in our example).
To use Gacutil on a non-development machine you will have to copy the executable and config file from your dev machine to the production machine. It looks like there are a few different versions of Gacutil. The one that worked for me, I found here:
I have a Visual Studio solution where I manage NuGet packages globally with a Packages.props file. I have a filesystem publishprofile. Now I added a reference to the NuGet package System.Diagnostics.DiagnosticSource. When I publish the project, the System.Diagnostics.DiagnosticSource.dll is not in the Bin folder of the publish directory. Other NuGet packages work as expected, so I assume that this has to do with the fact that we have a System. assembly here.
The global assembly cache (GAC) provides a centralised, machine-wide storage location for .NET assemblies. When you add an assembly to the GAC, you allow it to be shared by many programs, rather than requiring a copy to be installed for each application. 2ff7e9595c
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