Error in accessing DLL: "Attempted to read or write protected memory."

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  - 1
    - Problem loading DLL in some machines Another possibility (and one that bit us): Service Pack 2 for Visual Studio 2005 introduces new versions of the MFC runtime DLLs (and also the standard C++ runtime, I think). If you try to use the pre-SP2 versions of those DLLs with an C++ application built with Visual Studio with SP2 applied, it will say that it can't find the DLLs. Is there any possibility that has happened Tag: Visual C# General Error in accessing DLL: "Attempted to read or write protected memory." Visual C#
  - 2
    - where T : interface Maybe I was not clear enough: I want to specify that it has to be ANY interface, meaning no class, no struct but an interface. This interface may be anyone which I currently don't know about. For example IEnumerable, IDisposable, etc. These interfaces wouldn't probably make much sense but they should be supported. The method will be used with interfaces created by the consumer of the assembly. Also most of the interfaces already exist. Tag: Visual C# General Error in accessing DLL: "Attempted to read or write protected memory." Visual C#
  - 3
    - STA Threads and Dialogs Well I would of thought it had its own thread, but calling the Main method of an application does not seem to load the applications interface even though the code is executed, so to get around this I create a new thread a execute the Main method of the application which works fine but like I said, when I wish to use dialogs an exception is thrown. I know you cant change the state once started but you can beforehand. Tag: Visual C# General Error in accessing DLL: "Attempted to read or write protected memory." Visual C#
  - 4
    - Windows Vista Image Search Hi, does anyone know if there are new API's in .Net 3.0 that can be used to find all of the pictures that have been added in the Windows Photo Gallery and then can be used to obtain metadata the user has attached to each image such as tags, rating, notes etc Thanks Mark. Tag: Visual C# General Error in accessing DLL: "Attempted to read or write protected memory." Visual C#
  - 5
    - What should I do? ---help... Add a FormClosing event: this .FormClosing += new EventHandler(Form1_FormClosing); private void Form1_FormClosing( object sender, FormClosingEventArgs e) { e.Cancel = true ; } Tag: Visual C# General Error in accessing DLL: "Attempted to read or write protected memory." Visual C#
  - 6
    - question on operator overloading Paresh_Sen_3889e7 wrote: Can anyone explain me with an example, why we cannot overload C# operators for objects that we have not created Mostly because in order to create an operator it needs to be a member of a class. If it's a member of another class, how would the compiler know to apply it to the class that you have not created This is one of drawbacks from one of the things that were "lost" from C++: non-member functions. C# 3.0 adds the ability to have extension methods which declares that a member of one class actually extends another. This isn't slated to extend operators or properties though. Tag: Visual C# General Error in accessing DLL: "Attempted to read or write protected memory." Visual C#
  - 7
    - How to use CoInternetSetFeatureEnabled in C# ? I need to use the CoInternetSetFeatureEnabled function in my VSTO app. Can anyone provide an example of how to implement this function in c# Thanks, Tad Tag: Visual C# General Error in accessing DLL: "Attempted to read or write protected memory." Visual C#
  - 8
    - windows service The second question: InstallUtil.exe utility is included in the .NET Framework SDK. I find no single InstallUtil.exe to be downloaded. You have to install .NET Framework SDK. This SDK includes everything you need to write, build, test, and deploy .NET Framework applications—documentation, samples, and command-line tools and compilers. You must install the .NET Framework version 2.0 Redistributable Package prior to installing the .NET Framework SDK . How to Install Services Access the directory in which your project's compiled executable file is located. Run InstallUtil.exe from the command line with your project's output as a parameter. Enter the following code on the command line: installutil yourproject.exe [References] How to: Create Windows Services How to create a setup project for a Windows Service application Tag: Visual C# General Error in accessing DLL: "Attempted to read or write protected memory." Visual C#
  - 9
    - Best storage practices I agree. I'd use either an access database (which has a nice scalability advantage if you decide to upgrade your program later on) or XML (which has the advantage of portability, and can still allow for a decent upgrade to a database if you do it right). I'd argue that nowadays there is little reason to write out plain text files. -mwalts Tag: Visual C# General Error in accessing DLL: "Attempted to read or write protected memory." Visual C#
  - 10
    - Stop Thread and exit program I start in the worker class' constructor: (a create a new instance of Listen class in my form) class Listen { public Thread srvThread; public Listen() { try { //Starting the UDP Server thread. srvThread = new Thread(new ThreadStart(StartReceive)); ssrvThread.Start(); . . . } Tag: Visual C# General Error in accessing DLL: "Attempted to read or write protected memory." Visual C#
  - 11
    - How do we get all the thread associated with the .net application? Matthew Watson wrote: (1) Depends if the child thread is a "Background" thread or not. A background thread will be killed when its parent thread terminates. A non-background thread will not be killed. To set a thread as a background thread, set Thread.CurrentThread.IsBackground = true; That's only true when the application is terminating. If a parent thread exits, it's child threads continue running regardless of whether they are background threads or not. Tag: Visual C# General Error in accessing DLL: "Attempted to read or write protected memory." Visual C#
  - 12
    - Processor efficient loops (notifications). Hi Matthew, Thanks for your reply, much appreciated. I haven't actually defined this time-frame yet. I think I would start with something like 1 second and see how that performed. Yes I would need to check to see if the poll should time-out. I actually want the server to respond before the client request times-out so that the client cleanly knows the server is operating correctly. I'm happy with sleeping the thread in this manner but it all depends on how quickly and efficiantly I can check the queue. I'm not sure of the perf hit on the CPU when querying a SQL DB using the .NET framework. I know this will depend on the method used to connect to the DB and the method used the return the data. I do not know the most CPU performant way to query a DB using the framework. I also don't know if querying the DB is really as performant as I will need to be for this application. If not, I will have to get the SQL server to output these notifications in a different way in order for the app to poll for the notification. Any suggestions Thanks NozFx Tag: Visual C# General Error in accessing DLL: "Attempted to read or write protected memory." Visual C#
  - 13
    - DatePicker Hello Figo DatePicker's GUI interface is simillar to that of combobox - it has white box with arrow in one side. When user clicks on arrow then date board appears where date can be selected. I am required a little improve user's using of this control, i.e. when user clicks on white part of "combobox" the date board should appear (as if he clicked on arrow). In order to do that I need know a command that opens date board. What is this command Thank for your answer Yosef Fishov Tag: Visual C# General Error in accessing DLL: "Attempted to read or write protected memory." Visual C#
  - 14
    - ref keyword I want to invoke a method from DLL dynamically that has some parameters like int ** pointer; I am using the following code to load dynamic a DLL Code Snippet public object DynamicDllFunctionInvoke( string dllPath, string entryPoint, params object [] pars) { //Define return type of your dll function. Type returnType = typeof ( int ); //out or in parameters of your function. Type [] parameterTypes = new Type [pars.Length]; for ( int i = 0; i < pars.Length; i++) { parameterTypes[i] = pars[i].GetType(); } object [] parameterValues = pars; // Create a dynamic assembly and a dynamic module AssemblyName asmName = new AssemblyName (); asmName.Name = "tempDll" ; AssemblyBuilder dynamicAsm = AppDomain .CurrentDomain.DefineDynamicAssembly(asmName, AssemblyBuilderAccess .Run); ModuleBuilder dynamicMod = dynamicAsm.DefineDynamicModule( "tempModule" ); // Dynamically construct a global PInvoke signature // using the input information MethodBuilder dynamicMethod = dynamicMod.DefinePInvokeMethod( entryPoint, dllPath, MethodAttributes .Static | MethodAttributes .Public | MethodAttributes .PinvokeImpl, CallingConventions .Standard, returnType, parameterTypes, CallingConvention .Winapi, CharSet .Ansi); // This global method is now complete dynamicMod.CreateGlobalFunctions(); // Get a MethodInfo for the PInvoke method MethodInfo mi = dynamicMod.GetMethod(EntryPoint); // Invoke the static method and return whatever it returns object retval = mi.Invoke( null , parameterValues); // Filled verstr paramter. return retval; } When I use DllImportAttribute to wrap the DLL, the method has a parameter like this : ref IntPtr pointer and the method is ran correctly. As you can see, the Invoke method from MethodBuilder has the second parameter an object[] . I want to use the method of calling the DLL's method because I have a couple of versions of the DLL and I don`t want to replace the DLL for each version. I simply change the path to that DLL. Hope you'll understand better now my problem... Tag: Visual C# General Error in accessing DLL: "Attempted to read or write protected memory." Visual C#
  - 15
    - Cast to instance of type So, how do I create an instance of a type when all I have is the Type information However I have solved my original problem..... PropertyInfo pi = toCast.GetType().GetProperty("Age"); and pi.GetValue(toCast, null ).ToString() My problem was I did not think toCast.GetType().GetProperty("Age"); would work while toCast was an object, I thought I needed to cast it to MyCustomClass before I could access the properties Thanks for the reply. Tag: Visual C# General Error in accessing DLL: "Attempted to read or write protected memory." Visual C#
  - 16
    - copying a windows folder structure to sql server I i want to upload that structure to a sharepoint site. I m not sure yet if that s possible in sharepoint if someone familiar with sharepoint pls help Thanks Tag: Visual C# General Error in accessing DLL: "Attempted to read or write protected memory." Visual C#
- Next
  - 1
    - Completely dynamic method invocation What I'm trying to do is a little weird. I'm building a console system which allows the user to execute C# code that he types into an in-game console GUI while the program is running. Basically, I have programmed a static method called Execute. It takes a string of C# code as a parameter as well as a generic Object of a known type. It takes the passed C# code and surrounds it with the necessary code compile into a static function inside an assembly in memory. That function is then invoked via reflection, thus finally executing the code that the user entered into the console. The reason I want to be able to blindly invoke methods is this - Remember the generic Object that is passed into the Execute function that I spoke about It should be able to have methods called on it without being explicitly casted to it's actual type. It's somewhat like a scripting language feature. If there is a way to do blind invocation on a chunk of code, I want to be able to do it in the code generated by the Execute function. This probably sounds hard to understand, but it's just a real-time interactive console. If you've ever used TGE, TSE, or TGB, you'll know what I'm talking about for sure :) Tag: Visual C# General Error in accessing DLL: "Attempted to read or write protected memory." Visual C#
  - 2
    - Help Search doesn't work Thanks for your reply. Yes, the refresh is installed. I disabled all firewall-stuff, without any effect. But: It works when using the external help viewer. And it works, when copy&paste the correct URL into the internal help viewer manually. Strange enough, using the internal viewer, no local help-items are found for "TabControl". The extrernal viewer shows 314 hits. I use Vista with UAC enabled. I come across lots of lots of problems with that. So could it be that this is the problem Tag: Visual C# General Error in accessing DLL: "Attempted to read or write protected memory." Visual C#
  - 3
    - Help on Conditional operator ?: It does not work, because the second result (after the :) is of type DBNull and the first is of type DateTime. The tenary operator works only if both return types are the same! Tag: Visual C# General Error in accessing DLL: "Attempted to read or write protected memory." Visual C#
  - 4
    - debuging multi thread application problem thank you for your helpful reply. so I should ask one other question(don't mark as answer yet to don't loose attention). I am trying to throw all the exeptions to the main method and handle them there. but when the error occur the program will stop in thow line instead of going to the main. note that I manage to have try and catch in all of my blocks and throw all of them except main method but it don't go there. this was the reason that I thought it might be the threading problem Tag: Visual C# General Error in accessing DLL: "Attempted to read or write protected memory." Visual C#
  - 5
    - Why Won't My App Run on Windows 2003 Server? My Application Starts by Launching the Form. I recieve an Error Message that states. FolderWatcher has encounter a problem and needs to close. We are sorry... When I first tried it I did get an error in the windows even log, but now it is not there any more. It stated: Source: .Net Runtime 2.0 Error, Category: None, Type: Error, Event ID 5000, USer:NA Event Type clr20r3, P1 folderwatcher.exe P2 1.0.0.0 P3 45b53d29, P4 system, P5 2.0.0.0, P6 4333ae87, P7 35e3, P8 60, P9 system argument exception, P10 NIL I have tried this on 2 different windows 2003 servers and 2 different XP boxes... always works on xp, but not on 2003 server. I reinstalled the 2.0 .Net framework, but this did not help. When I built the app I chose Publish App, which create a setup.exe and some other files. I ran this and it installed fine. Tag: Visual C# General Error in accessing DLL: "Attempted to read or write protected memory." Visual C#
  - 6
    - import C# Form as ActiveX in Internet Explorer Still does not work. I'm thinking about just importing the c# library into a normal activex control using the interop stuff which work, but I would rather just use the c# since it easy much easier. Tag: Visual C# General Error in accessing DLL: "Attempted to read or write protected memory." Visual C#
  - 7
    - Text encoding mismatch, .NET 1.1, console vs windows app Thanks for replay, it seems i have to introduce some corrections and perform ipc in some other way. What are the alternative solutions for IPC in C# Tag: Visual C# General Error in accessing DLL: "Attempted to read or write protected memory." Visual C#
  - 8
    - Threading Question why do you think it isn't starting on a seperate thread, does the UI of the application 'freeze' after creating the thread In fact does UI do anything after creating the thread or does it just sit there IMO - the use of Application.DoEvents should be avoided, you shouldn't have to 'pump' messages around your application yourself, it is a hang over from VB when they couldn't process asynchronously in a form. HTH Ollie Riches Tag: Visual C# General Error in accessing DLL: "Attempted to read or write protected memory." Visual C#
  - 9
    - opening other programs? Yes, it's very simple actually. The Process class in .NET is pretty smart. For example, if you do the following: System.Diagnostics.Process.Start("http://www.yahoo.com") it will start the user's default browser and go to the Yahoo home page (this is of course dependent on whether the default browser accepts a URL as a command line argument - all the major browsers do). You can start any known program this way - pass it a text file, it will start the default text editor; pass it a path to a movie, it will use the default movie viewer. You can pass it an executable name too and if it can find the exe on the user's path, it will start that; if it's not on the default path you'll have to pass it the full path to the exe. Tag: Visual C# General Error in accessing DLL: "Attempted to read or write protected memory." Visual C#
  - 10
    - Help - How to create test code Dear All: I am new for c#, Any reference for me to create a system that can test/checking the coding. Is it the structure is correct or method is similar with my coding. I am really can't get any of idea how to create the coding for checking the java coding is correct or not. Thanks for anyone are helping. Regards: Cathyie Tag: Visual C# General Error in accessing DLL: "Attempted to read or write protected memory." Visual C#
  - 11
    - Internet Control.. Check out the System.Net namespace, everything about internet/socket is there http://msdn2.microsoft.com/en-us/library/system.net.aspx Tag: Visual C# General Error in accessing DLL: "Attempted to read or write protected memory." Visual C#
  - 12
    - XML over the Serial Port Is there a better way to do the job than read bytes from the port to an array and then trick them into XML document. I will appreciate design ideas or the snippet. Tag: Visual C# General Error in accessing DLL: "Attempted to read or write protected memory." Visual C#
  - 13
    - C#.NET 2005 Windows Service Crashing automatically Hi Fernando, Thanks for your response and suggestion. Yes, I am using the office interop and release memory using the following function for all COM objects. << private void ReleaseCOMobject( Object obj) { try { while (System.Runtime.InteropServices. Marshal .ReleaseComObject(obj) > 0) { ;} } catch ( Exception ex) { _logger.WriteError( "Exception at AccessQueryExecutor.ReleaseCOMobject() : " + ex.Message); } } >> I am also logging exceptions in a text file.....but it is coming as blank. Also, I have hooked the service start with AppDomain .CurrentDomain.UnhandledException event and logging it in a text file. Thanks & Regards, Rahul Tag: Visual C# General Error in accessing DLL: "Attempted to read or write protected memory." Visual C#
  - 14
    - Problems with Intellisense popup behavior Hi Suma, I'm don't think anything else is running that would be grabbing focus. What type of application would do that This condition seems to happen for each Visual C# Web application that I create. I used Webex to record an example in a new project. Each time the intellisense goes away it is on its own. I am not pressing any keys. How do I attach the Webex recording Thanks, Earl Tag: Visual C# General Error in accessing DLL: "Attempted to read or write protected memory." Visual C#
  - 15
    - referencing and using an assembly in different folder than App So the assemblies have to have a strong name, wich is in our case not really suitable. We have a pluginarchitecture where different applications can load the same plugin-assemblies and they all should live in the same folder. Since we use xcopy-deployment we would not want to install anything (into the GAC). So one option to solve this issue is make each application upon startup copy all assemblies found in the shareddll-folder to a local subdirectory. Do you see any problems / pitfalls with this approach Tag: Visual C# General Error in accessing DLL: "Attempted to read or write protected memory." Visual C#
  - 16
    - SP2 causing error? The error is as follows: Application has generated an exception that could not be handled. Process id=0x15c(348), Thread id=0x734(1844). The machine had Windows XP SP1 and IE6 installed. This was the same error that appeared on a machine with Windows 2000 and IE6. Thanks for the help. Tag: Visual C# General Error in accessing DLL: "Attempted to read or write protected memory." Visual C#

Rappol

Hi there,

I've made a Console Application in C# with VS2005 and putted it on a shared folder in my network (the EXE is called from a Job in SqlServer2000).

After a little struggle to make it work due to permissions...(i used the caspol utility to add a subgroup under the 1.2. Zone - Intranet, and added a strongname to the EXE with fulltrust - i hope im not saying any weird stuff, my english is not my natual language

)

Now the ugly stuff... my EXE uses 2 DLL which are in the same shared folder, using the [DllImport("libdsh_1MD.dll")] ... and i always get this error:

"Attempted to read or write protected memory. This is often an indication that other memory is corrupt."

What kind of error is this How do i avoid it

Does someone know how to help me

Re: Visual C# General Error in accessing DLL: "Attempted to read or write protected memory."

Peter Ritchie

If you're PInvoking methods in one of those DLLs it's likely that you haven't defined the DllImport attributes correctly.

Can you verify this works on a local drive/folder to confirm it's not a permissions problem

Re: Visual C# General Error in accessing DLL: "Attempted to read or write protected memory."

Rappol

thanks Peter for a quick anwser,

yes, in my local drive/folder it works perfectly.

Re: Visual C# General Error in accessing DLL: "Attempted to read or write protected memory."

Peter Ritchie

Rappol wrote:

thanks Peter for a quick anwser,

yes, in my local drive/folder it works perfectly.

If it works locally and the remote location has full trust then you shouldn't have a problem. Based on the information so far, it sounds like the code does not have full trust.

Re: Visual C# General Error in accessing DLL: "Attempted to read or write protected memory."

Rappol

what code the code in the DLL whats the best option to make it 'safe'