IO.File.Delete Random UnauthorizedAccessException [.NET]
Nov 27, 2010
I'm using My.Computer.Filesystem.WriteAllBytes to write out an executable stored in my application's resources to it's startup directory. After running the executable, I then delete it. Everything works fine; however, I'll randomly get an UnauthorizedAccessException for no reason. After getting the exception, I can manually delete the file with no problem. Here's the full code:
' Convert MP3
' First, copy out converter
Dim Path = New IO.FileInfo(SoundPath)
[code]....
What perplexes me is that I literally just wrote out the executable, and nothing else could possibly be using it. I've checked the file attributes and it's not read-only. My application is also running as an administrator.
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Aug 19, 2011
I am trying to search a drive letter (C drive) for a file in Vb.Net 2010. After I find the file path I want to run the executable. This is the code I am trying to use to find the file:
path = Convert.ToString(IO.Directory.GetFiles("C:", "wswc.exe", System.IO.SearchOption.AllDirectories))
[code].....
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Jan 21, 2010
Is there any way to avoid UnauthorizedAccessException, i get it every time when I try to do this:
Code:My.Computer.Registry.ClassesRoot.OpenSubKey("Applications").CreateSubKey("Explorer.exe")
Is there any way to make that script read-write?
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Jul 3, 2009
I knew that what I have doesn't create the username and password in the same .txt file. when i create a new user they both get thier own file with no text in them. When I tried to get the streamreader to access the previously created accounts, the only password acceptable is 'password'. I think it only accepts 'password' because 'Password.Read()' and it only created a .txt file Password when I typed it in. (I can't be for sure though). The top code is my Create User and the bottom code is my OK(accept created user).
Private
Sub CreateUser_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CreateUser.Click
If Not My.Computer.FileSystem.DirectoryExists("C:Documents and SettingsAll UsersStart MenuProgramsLogin Text To Speech") Then
[CODE]...
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Feb 13, 2011
How can be find out which file is going to delete when, user provides command like DELETE or SHIFT + DELETE or by programmatically gives DELETE command. Well I know about FileSystemWatcher Class, but this class doesn't provide information before delete...
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Jun 12, 2010
I'm running windows 7 64 bit and using VS 2010. I'm trying to use the filesystem.getfiles to find a file on the computer and return the path for it. However, when I search C:/ and its subdirectories, it always throws an error: "A first chance exception of type 'System.UnauthorizedAccessException' occurred in mscorlib.dll"
I've looked everyone online and can't find a solution. I have administrator privileges and really I dont want people who use my app to have to adjust security settings for this to work. Is there not a way to search the C drive for a specific file and return its path? [Code]
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Jan 7, 2009
I am writing a program to calculate Pi to several hundred billion decimal places and this will require lots of GB of memory. I wrote a test program in VB2008 that saved the first 16 digits of Pi (without the decimal point) to both a text file and a random access file, just to be sure it was outputting the numbers properly. For reference the first 16 digits of Pi are:
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Mar 9, 2008
How To Properly Delete A File Using File.Delete()
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Jan 21, 2010
Is there any way to avoid UnauthorizedAccessException, i get it every time when I try to do this:[code]Is there any way to make that script read-write?
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Dec 6, 2009
Get this when attempting to write to the registry.
CODE:
I get the error on the last line, what's wrong with it?
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Feb 17, 2012
Dim filePath As String = "~/Images/FleaMarket/uploadedImages/" & User.Identity.Name.ToString & "/" & itemID & Path.GetExtension(fuImage.FileName)
MsgBox(filePath)
[code].....
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Oct 19, 2011
Years ago when coding with VB6 and earlier, I used a file open command to create, read, and write a file that made it easy to store useful information.I believe it was binary and you wrote/read the data to a specific line in the file. When you opened the file with something like notepad, it just showed random ascii chars. When I needed a line of data, I could specify what line to load it from.
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Oct 23, 2011
Dim filePath As String = "~/Images/FleaMarket/uploadedImages/" & User.Identity.Name.ToString & "/" & itemID & Path.GetExtension(fuImage.FileName)
MsgBox(filePath)
[CODE]...
I get an error "System.UnauthorizedAccessException: Access to the path 'D:TriceDealsII Updated13-10-11Tricedeals II(4)ImagesFleaMarketuploadedImagesmitali2054' is denied"
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Dec 7, 2010
I searched for that error but got nothing.. strange.. so I'll ask..ok I have some code that I'm using to open MP3's and change the titles so I dont have to listen to audiobooks out of order....got this code from the web.. <below>I got it to open one.. and see all the tag's etc.. now I wanted to change oneof them.. but when it opens it.. I get that permission error.. the file is in c:/users/kevin and the file has permissions like normal.. but it wont letme open it..this is the open command its trying..FileOpen(intFile, mstrFilename, OpenMode.Binary, OpenAccess.ReadWrite, OpenShare.LockWriteEven tried changin the UAC settings to full priv.. that didnt work.
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Dec 7, 2010
System.UnauthorizedAccessException was unhandled. I'm following motcom's tutorial on creating a simple directory explorer, and everytime I try to expand I get the error above. How can I be getting that error on my own computer ? I'm on my administrator account, it happens even if I compile it and run it as administrator also. What could be causuing this ?
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Sep 27, 2009
i am creating an application that needs to read a text file from an external hard drive, the paths etc are all correct however i am getting the error System.UnauthorizedAccessException"i have searched through various forums and googled it and the only solution i can find is to allow the .net user permissions however i dont have this user/group on my system.also i am using Windows 7, dont know if that should make a difference.
Public Class frmMain
Public Structure Movie
Public Name As String
[code]......
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Mar 15, 2010
It seems like FileSystem.GetFiles() is unable to recover from the UnauthorizedAccessException exception that .Net triggers when trying to access an off-limit directory.In this case, does it mean this class/method isn't useful when scanning a whole drive and I should use some other solution (in which case: Which one?)? Here's some code to show the issue:
Private Sub bgrLongProcess_DoWork(ByVal sender As System.Object, ByVal e As System.ComponentModel.DoWorkEventArgs) Handles bgrLongProcess.DoWork
Dim drive As DriveInfo[code]...
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Oct 21, 2011
I am making a client/server project where the server can send a String variable to client but for now i'm starting with a simpler code. I was able to code a bit but now i'm having a problem with this UnauthorizedAccessException. It seems that I am not authenticated but i was able to put the admin username and its password. This is my problem.. Here's my code...
[Code]...
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Dec 22, 2011
In my application I need to rename a folder ( in order to replace it) and then to delete it
[Code]...
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Jul 16, 2009
I want to search an string in all files on C:.For this I use list = My.Computer.FileSystem.FindInFiles("C:", "Bula Bula", CaseSensitive, SubDirectorys)So when the search come to "c:Documents and Settings" for example I get this error:
System.UnauthorizedAccessException was unhandled
Message="Der Zugriff auf den Pfad "c:Documents and Settings" wurde verweigert."
Source="mscorlib"
[code].....
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May 29, 2009
I am using VB.NET 2008 Express Edition to access Serial Port which is a USB to Serial port. Since this is removable, the app user can disconnect it at any time in app. I am getting an unhandled exception when I remove the USB Serial Port.
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Nov 17, 2009
My application needs to change the default signature of outlook and I need to change the value of a registry key for this. But I get a error that I probaly don't have enough permissions. Strange thing is, if I change it manually it doesn't complain.
Error:System.UnauthorizedAccessException : Cannot write to the registry key.
Happens at the 2nd line:
vb
Dim subkey = Microsoft.Win32.Registry.CurrentUser.OpenSubKey("SoftwareMicrosoftWindows NTCurrentVersionWindows Messaging SubsystemProfilesOutlook9375CFF0413111d3B88A00104B2A6676�0000002") subkey.SetValue("New Signature", Text.Encoding.Unicode.GetBytes("Eigen"), Microsoft.Win32.RegistryValueKind.Binary)
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Jun 22, 2010
In my VB.NEt 2008 application, I am frequently creating and killing the file Fileopen and Kill(Multiple times ). It was working fine with Windows XP. But in Windows 7, it is worjking fine for some time (creating and killing theile properly) and then t is creating unautoriszed Access exception after some time .it does not happen immediately and it happens intermittently.
Sampel code is as give below:
Publicl_filenumber as Integer
Procedure 1:
[code].....
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Jul 3, 2009
I want to be able to create a username and password but when i debug and click 'Create User' an error pops up saying 'UnauthorizedAccessException was unhandled' with the path to the debug file, not the path i want the user information to be stored.
If My.Computer.FileSystem.DirectoryExists("C:/Documents and Settings/All Users/Start Menu/Programs/Login Text To Speech") = True Then
Else
My.Computer.FileSystem.CreateDirectory("C:/Documents and Settings/All Users/Start Menu/Programs/Login Text To Speech")
End If
If UsernameBox.Text = ("") Then[code]......
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May 18, 2012
I coded a very small website bot in C# using the default WebBrowser control. Actually almost everything is working the way it is supposed to work, yet I seem to have problems with the very last step of my automation.
The website was built using several iframes. This isn't much of a big deal as I simply access those frames and their elements using
webBrowser1.Document.Window.Frames[0].Document.GetElementById("element").InvokeMember("click");
This however does not work when the source of the IFRAME is being hosted on a different domain than the actual website. As I searched the internet for an answer to my problem I stumbled across an MSDN article mentioning this specific problem and they were referring to safety measures against cross site scripting which might be the reason for this error.
I couldn't really find a way of disabling this feature so I moved on and decided to recode everything to work with geckofx-12 instead of the default (IE based) web browser control, yet I ran into similar issues...
My question is: Is there any way I can bypass this annoying behaviour? I don't really care about security concerns or on whether geckofx or the default web browser control is being used, I would just like to programmatically access the elements of a site which is being hosted on a different domain without running into an UnauthorizedAccessException.
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Jun 24, 2011
This is a slightly tricky one, so bear with me...I have a simple little method:
[code]...
the service is for now working correctly. Anyone have any ideas what would cause such an intermittent failing? I'm assured by co-workers that nothing was changed over the weekend (not manually at least). Baffled...
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Mar 18, 2009
Ok so I have a small problem with an error I am catching. It only produces the file name and not the actual path of the file.I want to delete a folder and all the files and folders inside of it. However an error is thrown when a file is "read-only". A quick fix would be to set the attributes of that file to normal and then try again, the only problem is the error doesn't give you the location of the file.
2008
Module Module1
Sub Main()
[code]....
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Jan 11, 2012
I recently reformatted my computer and now that I try running a program I made beforehand, I always get an UnauthorizedAccessException when the program tries to access the D drive. How do I make it authorized? I tried changing the security settings for the D drive but that wasn't really much help.
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May 3, 2006
I'm debugging a VB app where I'm using a comm port attached to a bluetooth radio paired to another bluetooth radio in order to communicate with a remote barcode scanner. The pair of bluetoooth devices basically work as a serial cable replacement. Sometimes it works fine, but after a while I get an UnauthorizedAccessException message which breaks the program (see attached jpeg).
I only get this when I use the radios and not when I use a direct cable. I wonder if it has something to do with other bluetooth devices nearby trying to communicate with mine. I've used the .NET Framework 2.0 Confuration tool to adjust the zone security to give full trust to MyComputer, so I don't think it has to do with security, but I'm really going beyond my area of expertise here. I don't know what's going on.
[Code]...
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Jan 24, 2009
I am a total noob to VB and am only doing an A-level in computing. i'm using VB 2008 express edition am trying to make a windows form application which picks a random file from a folder and displays its contents in text boxes when a button is clicked.
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