Program Using To Much Memory?

Jan 20, 2009

the program ive created will need to run for 3-7 days with out be worried about memory leaks and anything else that might occur. to view what my program is using ive opened windows task manager.these are the reading i get:

CPU: between 0 and 2
working set(memory) about 29,596 - 29,600k
memory(private working set) about 8756 k[code]....

2 question, first does this look ok (is my program using to much memory, etc) and secondly why does the thread say 12-14?i thought the program is one thread plus i have a second thread running in the background so shouldnt that be just 2 then?(the program is an sms sends and recieves sms's, databases them, and sends out responses based on what the txt msg is).


Memory Leak In Program

Jul 11, 2009

This is a little app that sits in your task bar and check a website for the presence of a simple string. The string is either "ONLINE" or "OFFLINE". THe problem is that there seems to be a minor memory leak, since every once in a while (I suppose when the timer expires) the memory it takes up increases by a good bit. [code]

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1. I run a program in VB, then i click X button to close the main form, the program exits.

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3. An error appers: "The operation could not be completed..." and then some text in my own language, I try to translate it into english: "...The process cant get access to file, because its been in use by another process"

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I made a little VB app to shutdown a laptop after it has been powered on for 2 1/2 hours, and giving the user a little over 8min warning that it is about to be shutdown. However I have nothing in place to stop the user from restarting the device once it is shutdown. What I would like to integrate in this, is a sort of memory where if the user doesn't wait at least 30 minutes, the shutdwon will re-iniate immediatly.

I included the code I did so far.

Public Class Form1
Private Declare Sub Sleep Lib "kernel32" (ByVal dwmilliseconds As Long)
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I am a noob to Visual Basic and I am currently learning it at my college. I have a final project to do and I am having some trouble deciding on how to attack it. First off, I have done a lot of research and I cannot find my answer, so I am using this(post) as a last resort. The book my prof ishavingme use is outdated, its coding on vb6, and we are using vb2010...hence my problem. I am not looking for an answer in code, but more to be pointed in the right direction, or maybe some classes that I do not know about.[code]...

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Inspired from this question, was wondering what are the possible ways to create a memory leak in .Net. I once found one with ODBC Data Access. Has anyone had any experiences with latest version?

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Oct 30, 2009

Error 1 Problem generating manifest. Insufficient memory to continue the execution of the program. Facsimile_XP

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Aug 14, 2009

My Application (, Access 2003/2007) is to scan Access Database files for activex controls and to generate report accordingly.Problem:

Getting an error like:"Insufficient memory to continue the execution of the program."

The above error occurs while scanning for older version of Access files like prior to office 2000.

And the line of code where I get this is as follows:

Dim oForm As Access.Form Dim oAccess as Access.Application oForm = oAccess.Forms(objForms.Name)

But it opens the file and form as well.

Whether it is possible to read the file (Access Forms and Reports) or not?

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Jun 22, 2009

I need to make a program for my school (I`m the principal), that reads the text in the memory address of the program and write it down in a txt. I already have the address numbers. For more information, I use VS 2008.

I was trying to make one code to get the memory address. So, after I succeed this, I'll make the correct program.

The code I made(adapted from [URL] returning-0 ):

Public Class Form1
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I am using visual studio 2008 express.

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Jun 20, 2009

I need to make a program for my school (I`m the principal), that reads the text in the memory address of the program and write it down in a txt. I couldn`t find a professional here in my city so, I already have the address numbers. For more information, I use VS 2008. I was trying to make one code to get the memory address, and after I succeed this, I'll make the correct program.


1. It only gets the first 4 bytes(is it?) of the memory address. I want it to get all of them.

2. I haven't discovered how to convert each byte(?) into a character. Is there a function for this?

3. When the program runs, after clicking ok on the MsgBox, it highlights the Next and debuggs:

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

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May 31, 2009

I am building an app that builds a bunch of cardinal splines by storing their PointF structures in arrays. As the program runs, new points are added to the arrays, and the graphics are drawn to a bitmap. I can let it run for ages and the splines just keep growing like they should with no problems. The amount of points in each spline can grow into the thousands. To speed up execution as time progresses, I don't completely redraw the splines after each pass, I simply draw the last segment of the spline to the bitmap, having let the bitmap 'record' the earlier part of the splines.

But if I pan across the scene or zoom in/out of it, then I DO have to completely redraw the splines, since the size and resolution of the display is limited to its dimensions. Panning works, no problem. But if I zoom in and out of the bitmap with the mouse wheel, after about 14 wheel clicks, I get an "Out of Memory" error. BUT...I have it set up so that whenever the mouse wheel turns, the graphics and the bitmap are disposed so that new ones can be built for the new zoom setting. So why would the program run out of memory when as far as I can tell, I am disposing of all my unused, unmanaged resources on a regular basis?

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It would appear that when having an ArrayList of this size a LOT of memory is being used. Would there be a faster way to run this, E.g. Database or If TextFile.Contains(Line)?

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I want to be able to read and write the process memory of Firefox for a game on facebook(It's kind of like cheating only you can't cheat, nothing stays permanent.) this is just for fun. The game is called happy fish aquarium and you raise fish in the game and it's just really addicting. I found a program that reads process memory and lets me change certain values in happy fish aquarium so I can make my fish tank look different or whatever. But if I reload the page it will of course go back to the original state because the fish tank's memory is held online. The point is, I just want to make a program that can read the process memory from Firefox from a certain range and bytes. like 4 bytes and a range of 00400000 to 7FFFFFFF. Does anyone know how I can achieve this? Please note, this is not for cheating purposes in any way whatsoever, it's simply for visual fun(visual meaning only I can see it). What I want to do is the same as using the add-on firebug in firefox to change the html on a webpage.

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I'm trying to fix a problem that is just killing my program's efficiency. When I run it, it starts out at maybe 10M of RAM, but it gradually increases. Within 20 minutes, it can get up to 700M of RAM. Now, when the program is restarted, all of this goes away and starts anew, but restarting the program every so often is a very loose solution. Here's what my program does: there's an array in which many (anywhere from 500-4000 or so) links are placed. I have a webbrowser that navigates to each of these and does an action on them, then moves to the next page. For example: [Code]

And all of the actions work perfectly, but the memory exponentially increases, resulting in a crash if left on for too long. I've searched Google and all I've found is that that's not the actual usage, and that if you just minimize it and maximize it again it will go down, but it did not when I tried it. Why is the memory increasing so much like that, and is there any way to fix it?

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May 30, 2010

I've been scouring Google looking for a solution to my problem, but I can't seem to find anything so thought you guys might know a way of solving my problem.Im writing a little program which needs to change a few different memory address variables of a specific process.Does anyone know how first of all I can detect if the specific process is running on the user's machine, and then how I would read the value of the memory addresses, and write to them also.

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Feb 5, 2010

working on an application which performs a set of operations on Active Directory based on an op code.The application was developed long back and has been working fine. I recently made few changes, which is causing the Server to run out of memory whenever the program is being run. I also modified the code to make sure that the variables being declared in each function are set to "Nothing" at the end of function so that the memory can be collected by garbage collector. To make sure, I'm also forcing garbage collection to take place at different parts of the program. But, I still continue to have the issue. The program is very big and hence I could not upload it.

The code retrieves a list of rows from a table with opcodes in it and based on operation code, it performs a set of tasks. The problem is that when it loops through each row in the table, the size of memory required by the program keeps increasing (> 1 GB) to the point where the Server (Windows 2003) is crashing. I have tried different profiling tools, but none of them have been able to detect any memory leaks in the program. I'm guessing that the resources are being held up and hence causing this issue.

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Oct 21, 2010

I have a program made in vb 2010. The problem is it uses my files on the computer such as different cursors and pictures and I really want to be able to make it portable and stick it on a memory stick and run it on other computers. Is this possible?

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Jul 2, 2009

I was observing my programs process in the task manager and noticed each action made to the program made the memory continue to rise. So I added a Garbage Collector and since it's my first time using it im not sure if I implemented it right. I haven't gotten any errors but I ran some tests I would like to go over with everyone. After adding the GC I was able to notice a change in the memory my program used- it was reduced.I added the GC to the main forms formClosed event of my application which is used in different scenarios. I also added it to the panels paint events before I tested the program. And noticed a quicker reduction in memory. The Form i mainly use called frmLine1t5. This form calls to the database based on which line to test. Then the form sets the controls that were added in design view to be enabled or disabled based upon the product for that line. This process was easy to implement.I Load each new frmLine1t5 to a collection of the form so people can run multiple tests using the same form. This helped so i didn't have multiple forms for the same type of process. I had to access the forms through a collection so I knew which controls to populate to the correct instance.

I noticed during my testing that I can not add more than 50 items to this collection. The problem is that I remove the key from the collection upon form closing, so I dont know why it has gotten to 50.The test I made Runs two timers. Timer 1 is set to tick every 4.5 seconds This timer loads a new form and tests a new line of product.Timer 2 ticks every 5 seconds and closes the previously opened form.I have it get the GC Total Memory upon loading the form of frmLine1t5 and upon closing the form of frmLine1t5.the results are shown in the picturesThe errors i have gotten occured when ChildForms Open: had reached 50Here are the errors:


Possible Causes:I think that upon Form Closing it is taking longer to finish closing before a new form is loaded... But isn't suppose to finish any unfinished threads? Even if the program is single threaded?And because the form closing isn't "happening" then the key is not removed from the collection.

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Dec 5, 2010

I get this error on this line: System.Runtime.InteropServices.Marshal.Copy _

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I also sometimes get an error on this line:

Dim dc1 As IntPtr = CreateDC("DISPLAY", Nothing, Nothing, CType(Nothing, IntPtr))

What I'm trying to do is take a screenshot and then read the colors of pixels. I currently have a working copyfromscreen method but it's SLOW and using 100% cpu usage.


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Mar 21, 2011

I am fairly new to visual basic and have written this program to detect a change in a selected pixel on the screen. When the pixel changes, a sound plays every x seconds. It works fine but after a few hours of operation a possible memory leak causes it to either crash the program or the PC. I have watched the process and I can see 4k added to it every 4 seconds or so. Where this memory leak is coming from?

Here is the code:
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Nov 5, 2009

In VB 2005, I am calling a C++ DLL function that returns the address in memory and size in bytes of a jpeg image. How can I load that jpeg image directly from memory into a picture box in my VB form? I cannot afford to save it to disk first.

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May 22, 2007

Im getting a problem with one of my programs I have made in visual basic.NET where it gives me a memory error when i debug the program in the IDE. the exact error is this: "Attempted to read or write protected memory. This is often an indication that other memory is corrupt". My program basically has a few forms with text fields on that get their text values from an access database on the same hard drive. Im wondering if im doing something wrong because my program just seems to eat up memory whenever it does anything. For example I have one form that has a combobox on it and when you change the drop down list selection it retreives a few strings from the database and puts them into the relevant text boxes, if you keep changing the selection then the memory usage (in task manager) just keeps going up and up. occasionally I get the error mentioned above when debugging but in my built version of the program it throws an exception everytime the memory usage gets past 49K.

Also I noticed when debugging in the "immediate window" frame I get the following message often:A first chance exception of type 'System. Invalid OperationException' occurred in System.Data.dll...Do I need to somehow be "releasing" the memory that is used to gather data once it becomes redundant?

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Attempted To Read Or Write Protected Memory. This Is Often An Indication That Other Memory Is Corrupt

Nov 24, 2011

I am using the following code

This error occurs :

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

Public Class FormRegEnumValue


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Feb 1, 2009

QuoteSystem.AccessViolationException was unhandled Message="Attempted to read or write protected memory. This is often an indication that other memory is corrupt." Source="System.Windows.Forms"

Im designing a web browser and i continue to receive this error after going to about 3 websites it crashes with that error.

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Jan 20, 2010

I have a BackgroundWorker object that I instantiated to perform a DB process on a background thread ansynchronously. I have event handlers for DoWork and RunWorkerCompleted. I can tell that the BackgroundWorker is disposing of itself because I added a message box into the Disposed event handler.Is it necessary to detach the event handlers to ensure that the memory is cleaned up and that there are not memory leaks?

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Apr 17, 2011

I've noticed that every time I start a new thread in my program, the memory usage jumps about 1000k and it never goes back down. I have ensured that the thread is no longer running, and only one instance of my worker thread is ever running at a time. I am using ThreadPool.QueueUserWorkItem and ASyncOperation to get stuff done. The program starts using a Sub Main in a module that uses STAThread; I read that using STAThread instead of MTAThread makes it impossible for the Garbage Collector to get in and consider objects for garbage collection. However, when I change the STAThread to an MTAThread, the WebBrowser control in my frmMain cannot be instantiated.

I get this exception:

Code: An unhandled exception of type 'System.Threading.ThreadStateException' occurred in System.Windows.Forms.dll

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May 27, 2009

I cannot use Visual Basic 2008 at all. When I go to "new project" and choose "Windows Form Application" I get this error.I have tried multiple uninstall/reinstall with no result.A microsoft reply to this suggested that I needed:" .NET Framework 2.0 Service Pack 1 " I checked, and I did not have the .netframework 2.0 service Pack 1.
When I tried to download and install the above from, the istaller said that "it was not allowsed" and I was not able to install the service pack 1.

I tried Uninstalling net framework 3.5, 3.0, 2.0 and then reinstalling .netframework 2.0 sevice pack 1; then reinstalling Visual basic 2008 express edition. At the reinstall of Visual basic 2008, .netframework 2.0 sevice pack 1 is unistalled by .net framework service pack 2.When I check the foruims for simiar problems, the formus are mostly for Visual basic 5.0, or other programs that I do not have.

Here is the programs I have installed:

Operating system: Windows XP
Microsoft .net framework 1.1
Microsoft .NET framwork 1.1 Hotfix(KB928366)
Microsoft .Net Framework 2.0 Service Pack 2


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Jan 11, 2012

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Feb 9, 2011

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Jan 20, 2010

I�m having trouble with my VS. It gives me the error "insufficient memory to continue the execution of the program". This is a dangerous error because I cannot save the project either. So all work is for nothing. Actually VS destroyed my mainform at one time due to this error.

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line 538: d.PrintFunction(c, typePrint, mp, x, y, extendedHeight, ScanForChildControls)

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