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?
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?
View 10 RepliesMy 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)
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].....
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.
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]...
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]
Error is coming Registry Access is not allowed.While Opening a Key.
Code:
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
NewDelete("HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionRun", "Sonia")
End Sub
[CODE]...
I've had a bit of a look around the net and on the forums but I've yet to find an answer to my question. I've got Visual Basic 2008 Express and I'm trying to write some registry entries, I can write strings fine just using
[Code]...
Currently, I am try to get the email addresses that have been saved or stored by the user of the computer. This isn't the emails that the user has sent or received, or the contacts he/she has in his address book. Just simply the email accounts that have been accessed from the computer.I know that there are some locations stored in the registry that have the email account. The email addresses that are used on the current computer. I just can't seem to find them on my computer.I am not sure if the registry is the only place to find it or if it stored on the web browser such as internet explorer or google chrome.
View 1 RepliesI am writing an application that connects to a specific com port. This com port can change depending on how many physical ports are on the PC, and if other USB devices have installed com ports before this one.
I have the communication to the com port all working great, but I need to get the com port description not just the "COM#" which is all I currently get.
I found in the registry where the description is stored but am having trouble doing what I need.
In this key:
Code:
HKEY_LOCAL_MACHINESYSTEMControlSet001ControlClass{4D36E978-E325-11CE-BFC1-08002BE10318}
there is a varied number of sub keys. The are numbered 0000-NNNN depending on how many ports you have. Inside each of these keys, there are multiple values, although I am only interested in one or 2 of them.
My problem is, that I do not know how to get a list of the subkeys (the 0000-NNNN keys/folders) from the original key I posted. I have looked through a few registry tutorials, and I can view the default value in the listed key, but I could not find how to list the subkeys of the listed key.
Does anyone have any sample code they could share that shows how I can get a listing of subkeys, and then run through those subkeys checking for a specific value in one of the strings contained in the subkey?
I am using VB.net 2008 and Windows XP.
I have several programs that must write to HKLM in XP and Windows 7/64 Pro.The programs work in VB6 but not in VB.Net 2008 on target machines. It does works on our development machine. [code]I just cannot figure out why VB6 works but .net doesn't and fails only on the target machine not the development machine.
View 2 RepliesHow can I change the permissions of a registry key. I want to allow anyone in the "Users" group to be able to write to "SOFTWAREMyApp".
View 2 RepliesI am trying to check whether file exists or not. if not create and write something into it.The file is getting created but not updating and getting error message says it is being used by another processCode snippet:
Public shared sub MyXml()
If Not System.IO.File.Exists("configfile.xml") Then
Dim writer As New System.Xml.XmlTextWriter(fullPath.ToString + "configfile.xml", Nothing)
[code].....
I need to be able to change a line in the regisrty an am not sure how to go about it, i have searched but nothing i can understand at the moment.
Code:
HKCU,"SOFTWAREMicrosoftInternet ExplorerDesktopGeneral","Wallpaper",0x00020000,"%SYSTEMDRIVE%WebDreamSceneBeach.html"
The part in bold is the part i need to be able to change as i am having to write a little program to change the background on the desktop.
I should be ok once i know more on how to do things like this.
I just bet the answer to this question already exists, however I saw no search mechanism under the forum. Anyhow, I would like to change registry data, and this code is asking for an instance to the object.
Dim RegKey As RegistryKey = My.Computer.Registry.LocalMachine.OpenSubKey("HKEY_CURRENT_USERSoftwa reAnyDWGSoftwareDWGtoPDFProSettings", True)
RegKey.SetValue("OutputPDFFileOpt", 1)
Finally, I want to apply this setting to the program on four different computers (local, and three others on the network).
I am going to handle an event to write all files in a directory to a text file.But only the last file's context is saved successfully, I think that because of overwriting.
Private Sub ExtractButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ExtractButton.Click
Dim FileName As String
Dim FileItem As ListViewItem
[code]....
I have a FileSystemWatcher and whenever a file is changed/created it is uploading the file for me to an FTP. My problem is that it keeps uploading the same file 3 times.
View 5 RepliesBut i've a problem, everytime i hit the button "Save Settings" in my form/application it will re-save the settings to ini file, causing duplicate entries :(
Does anyone knows how can i avoid it to happen?
And, how can i retrieve a setting from the ini file to a textbox or messagebox or something?
(before anyone start saying me to use .xml, i was reading and i prefer the .ini files to what i'm doing)
So I have an application which uses MSSQL server as datasource. Is there anyways I can avoid using any database server and use a local file as datasource ?
View 4 RepliesCurrently I am using this code to check for Firefox on a 32 bit machine
Code:
Dim Firefox32 As String
Firefox32 = My.Computer.Registry.GetValue _
("HKEY_LOCAL_MACHINESOFTWAREMozillaMozilla Firefox 5.0in", "PathToExe", Nothing)
MsgBox("The value is " & Firefox32)
If the value is found then the above message is fine, but if the entry is not found I want it to display a message like: "Firefox could not be found" instead of "The value is: " What code would make this appear?
[Code]...
I need to write data to a file, preferably in binary format, but I am unaccustomed with the concept. Where's the easiest place to get the basics? I could come here with a specific need, but I'm at the point right now where I am more willing to work within the confines of keeping it simple.
Here's what I know:
1. how to open a new file
2. how to specify the record length
3. how to close the file
Some specific questions:
Does the record length have to be constant throughout the file?
Can I read the nth record without reading the whole file?
I am working on a VB Console Application that takes an Autocad drawing type DWG and converts it to a PDF using a shell command that calls a third party application. In this case, acmecadconverter.exe from www.dwgtool.com. Then the PDF that is created needs a unique watermark, so I call a second application for that called pdftk.exe from www.accesspdf.com/pdftk/.
Everything works as intended, except when I try file names that contain spaces. The file system object does not tolerate spaces in the drawing file name. For instance, the following command gives me a system.io.filenotfoundexception...
My.Computer.FileSystem.RenameFile("Test Flowchart1.dwg", "Test~Flowchart1.dwg")
It's the same problem for all of my File System commands. Either file not found or invalid arguments.
The complete script I'm using is here:
Code:
Sub Main()
Dim arrArgs() As String = Command.Split(","), _
i As Integer, folderPath As String, myPart As String, _
[Code].....
I'm currently developing an editor for an AFL management sim.I want to be able to load three or four multidimensional arrays to the program, then save them to the same file. I tried the tutorial on here but got completely muddled up. Why can't it be easy like in VB6 When it was like 10 lines of code tops!
View 5 RepliesI 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:
View 8 RepliesI have a program that can save to a .txt file.The issue is I need it to be done in a tab delimited way.Basically:
TextHere<Tab>TextHere<Tab>TextHere<NextLine>
TextHere<Tab>TextHere<Tab>TextHere<NextLine>
I have this so far, but all it does is put the TextBox1.Text next to TextBox2.Text
Code:
SaveFileDialog1.Filter = "Text files (*.txt)|*.txt|All files (*.*)|*.*"
Dim FileWriter As StreamWriter
Dim results As DialogResult
[code]....
Our program will start with the help of a FileSystemWatcher object. How can we check or the file is total copied, for example the file is 100 Mbyte it take a time it's ready for use. Idea:
Do While True
Try
N = testForUse(BigFile)
If N = 1 Then Exit Do
[CODE]...
I want to be able to able to read the dimensions of a TIF image without loading the entire file.
PS Using Visual Basic 2008 on Vista64.
Get this when attempting to write to the registry.
CODE:
I get the error on the last line, what's wrong with it?
Dim filePath As String = "~/Images/FleaMarket/uploadedImages/" & User.Identity.Name.ToString & "/" & itemID & Path.GetExtension(fuImage.FileName)
MsgBox(filePath)
[code].....