Using DLL's on client machine

From MSDN:

You can use the <codeBase> element only in machine configuration or publisher policy files that also redirect the assembly version.

...

Note   If you are supplying a code base hint for an assembly that is not strong-named, the hint must point to the application base or a subdirectory of the application base directory.


If you want to use the assembly from a location other than the app's location, I believe you have to use the GAC.  This also means you need a strong name (using a public key) for the assembly.  You can use GACUTIL to install the DLL into the GAC, and even create setup projects that will do this for you.

assembly i wish to use is strongly named

Then I would install it into the GAC on the users' machines.  

Use the command:

gacutil /i C:/Program Files/X/xObjects.dll

I can not register assembly in GAC. I know there is another way to do it.

Try to supply the public key token in the assemblyIdentity node.

I think that if you set the version in your AssemblyInfo.cs should be enogh

[assembly: AssemblyVersion("1.0.0.7")]

instead of

[assembly: AssemblyVersion("1.0.*")]

hope helps...

Also set the culture if you set the culture in the assemblyinfo of the xObjects DLL

I've tried to "Try to supply the public key token in the assemblyIdentity node." Didn't work.

The reason I want to use DLL's on user machine is because they are updating them regulary. I want to use any version they have, so I can not set the version. Is there anything else I can do to make it work?

try adding culture="neutral" if there is no culture specified in the assemblyinfo of the source dll

If you're still having trouble, try adding an event handler in your app to perhaps shed some more light on the cause:


{copied from http://support.microsoft.com/default.aspx?scid=kb;EN-US;837908}

AppDomain currentDomain = AppDomain.CurrentDomain;
currentDomain.AssemblyResolve += new ResolveEventHandler(MyResolveEventHandler);



private Assembly MyResolveEventHandler(object sender,ResolveEventArgs args)
{
      //This handler is called only when the common language runtime tries to bind to the assembly and fails.

      //Retrieve the list of referenced assemblies in an array of AssemblyName.
      Assembly MyAssembly,objExecutingAssemblies;
      string strTempAssmbPath="";

      objExecutingAssemblies=Assembly.GetExecutingAssembly();
      AssemblyName [] arrReferencedAssmbNames=objExecutingAssemblies.GetReferencedAssemblies();

      //Loop through the array of referenced assembly names.
      foreach(AssemblyName strAssmbName in arrReferencedAssmbNames)
      {
            //Check for the assembly names that have raised the "AssemblyResolve" event.
            if(strAssmbName.FullName.Substring(0, strAssmbName.FullName.IndexOf(","))==args.Name.Substring(0, args.Name.IndexOf(",")))
            {
                  //Build the path of the assembly from where it has to be loaded.
                  strTempAssmbPath="C:\\Myassemblies\\"+args.Name.Substring(0,args.Name.IndexOf(","))+".dll";
                  break;
            }

      }
      //Load the assembly from the specified path.
      MyAssembly = Assembly.LoadFrom(strTempAssmbPath);

      //Return the loaded assembly.
      return MyAssembly;
}

I'm trying to use example from msdn but getting wierd error.
Studio underlines "+=" and "ResolveEventHandler" in "currentDomain.AssemblyResolve += new ResolveEventHandler(MyResolveEventHandler);" line. Does anybody know what's happening there?

Where are you adding the code?  It should be in the entry point of your application (Main(), for example).

What compiler errors do you get?

TYpe or namespace name 'Assembly' could not be found...

private Assembly MyResolveEventHandler(object sender,ResolveEventArgs args)

add

using System.Reflection;

to the top of your code file.

currentDomain.AssemblyResolve += new ResolveEventHandler(MyResolveEventHandler);

It still does not work, I got following error:

an object refence required for non static field, method or property .......... myresolveeventhadler....

Are you defining the MyResolveEVentHandler as a method of the startup class as well?

Yes, that's part of a code:

      [STAThread]
            static void Main()
            {
                  Application.Run(new Form1());
                  AppDomain currentDomain = AppDomain.CurrentDomain;
                  currentDomain.AssemblyResolve += new ResolveEventHandler(MyResolveEventHandler);
            }


            private Assembly MyResolveEventHandler(object sender,ResolveEventArgs args)
            {
                  //This handler is called only when the common language runtime tries to bind to the assembly and fails.

                  //Retrieve the list of referenced assemblies in an array of AssemblyName.
                  Assembly MyAssembly,objExecutingAssemblies;
                  string strTempAssmbPath="";