Windows 7 FileExists Error - Get The Drive Letters To Work In The IDE?
Jul 11, 2011
I'm running Visual Studio 2005 SP2 on Windows 7. When I'm in the IDE and execute a My.Computer.FileSystem.FileExists, or DirectoryExists or CopyDirectory, etc. that accesses a network drive using the drive letter (i.e. L:) it thows an error. If I use the full UNC (\computernamesharedfolder) it works. However, if I go into my project's bin folder and run the compiled .exe from there, the drive letters work. I've tried running VS.Net as admin and it makes no difference. How do I get the drive letters to work in the IDE?
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Feb 5, 2011
I am trying to take a look at the cache of UT2004 through my application since the information holder contains some bugs sometimes and I know how to fix them.
vb.net
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim totalText As String =
[code].....
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Aug 29, 2009
My.Computer.FileSystem.FileExists(g_DbFolder & "MyDB.sdf")returns false for this existing database in Windows 7 64bitYet when I boot back into Vista Ultimate/(rip off) 64bit the database is properly detected.
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Sep 1, 2010
Is there a way to populate a combox with a list of available drive letters? I've tried the following code but could not gt it to wrok.
[Code]...
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May 15, 2012
I'm currently writing a program which has a requirement to reassign drive letters if a drive with a particular volume name is plugged in to ensure that it is assigned to the correct drive letter.
[Code]...
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Jun 4, 2009
I'm trying to determine if a file "G:myfilesfile1.txt" exists. Using sample code from numerous web searches I can't make any of the FileSystemObjects work. Seems to me the FSO routines are an add-in to VB. If this is so, how do I add them in?
In noncode, this is what I really want to do:
if "file1.txt" exists AND "file2.txt" exists
if "file1.txt" filedate > "file2.txt" filedate
copy "file2.txt" to "fileold.txt"
[Code].....
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Apr 9, 2009
My app is designed to work on XP & Vista but I get an error on Vista but not XP When I want to kill/delete or move a file from an external drive I get an external error message System.UnauthorizedAccessException: Access to the path is denied.
full error text:
************** Exception Text **************
System.UnauthorizedAccessException: Access to the path is denied.
at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
[code]....
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Jan 22, 2011
I have developed a VB 2010 express application that works on my windows 7 machine, but when I deploy it to other windows 7 machines the application will not run at all. I created an msi script to install the software on other machines and it includes the .NET 4.0 framework an all of my application dll's and such. Any idea what might be he problem?
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Jun 16, 2011
I want to built an application using VB.NET so USB drive can be enabled/disabled [without OS Restart] to secure from file being copied without owner's permission! Before putting - or down vote, write your reason to do so
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Apr 3, 2012
I have an installation of VS2010 with Windows 7 at work and a laptop with Windows 7 X64. I transferred a whole set of project files to the laptop but the directory "Documents" does not exist on the laptop - it is called "My Documents". As such of course I get errors when loading the project on the X64 machine as the resource files cannot be found. I have tried changing the name of the directory to "Documents" to accord with the other PC, and this was apparetnly successful. But, VS still does not "see" the files in the renamed directory. How can I simply change the path name for the resource files so that VS can see these files?
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Mar 2, 2010
How can I map a network drive over a Windows Service. What I did until now.
Using the Shell command. -> not working.
vb.net
Shell("net use \" & My.Settings.ParaRootPath & " " & My.Settings.ParaPasswordHTTPS & " " & "/user:" & My.Settings.ParaLoginHTTPS)
Using a System.Diagnostics.Process object. -> not working
vb.net
ShellExecute As New System.Diagnostics.Process
ShellExecute.StartInfo.RedirectStandardOutput = True
ShellExecute.StartInfo.FileName = "cmd.exe"
[Code].....
If I run the application as normal application, it is working correctly.
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Feb 3, 2010
i need to restrict access to a drive in windows using vb.net
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Feb 22, 2012
How to map a network drive to be used by a service. My question is relatively similar, and I realize there are others that are.. but I can't get it to work. I am creating the service thru visual studio 2010.
I attempted to map using WNetAddConnection2- and it successfully maps and is instantly lost (check if drive is mapped right after mapping it). I tried something else. saw some information about using WSH.. I added the reference and tried using wsh... didn't work.I tried WNetUseConnection and that failed as well.
Attempted running the service under a different profile- that didn't work Once I actually get access to the network drive, i need to copy files from that share into a local directory. Maybe I'm missing the boat here but If someone could give me a thorough explaination of what is actually going on and a direction to head I can probably figure it out
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Apr 2, 2012
I'm keeping track of some things that are numbered and others that are lettered; while NumericUpDown is perfect for selecting numbered things, I need an analogue for selecting lettered things. The obvious choice would be a listbox that just contains all the letters of the alphabet. But I need to show only the appropriate range of letters, so if I want to use a listbox, I need to write a function that populates the listbox with the first n letters of the alphabet; if n > 26, it should continue with aa, ab, and so on. How do I do this?
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Dec 5, 2009
I wrote this code to try and figure out which drive Windows is installed on - it basically starts with C and looks for the first "fixed disk" with a Windows folder.
' Start with c: and look for first fixed drive (type=3) with a windows folder
Dim getInfo As System.IO.DriveInfo
Dim m_start As Integer = 67
Dim m_drv As String = Chr(m_start) & ":windows"
[Code] .....
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Feb 5, 2011
I have a program that works in Windows XP Pro, Visual Basic 2005 and Excel 2007 that does not work in Windows Vista, Visual Basic 2005 and Excel 2007.The program takes Excel data from an already opened Workbook on the desktop and moves it to the Visual Basic program.The error occurs when I try to open the Excel Application in Visual Basic:[code]Is there a different code to define an Application in Vista?The "Open" Application will not work on a Excel App already on the desktop.
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Oct 25, 2011
I have a VB.net project that i've published through a click once installation which was compiled in Windows XP the application contains a previous version of True DB grid which is not supported windows 7 so i'm trying to get my application to work in Windows 7 so that the true db grid and other such controls work without any issue. i tried compiling the code in x86 mode
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Jan 17, 2011
I am trying to migrate from XP & Net 2005 to Windows 7 & Net 2010 My intention was to replicate net 2005 first & get projects working before installing net 2010, as I envisaged all sorts of learning tasks which I could resolve at a snaill pace whilst still being able to operate with net 2005
Stage 1 was to load 2005 on Windows 7, no problems yet.
Stage 2 open the Virtual Cryptainer drive
Stage 3 load a project ( was never a problem with XP)
Stage 4 project errors reported as not being able to access linked modules in another folder
Windows 7 seems to have more folder security/permissions than XP, so I altered as many folders being associated with the project but to no avail.By changing the virtual drive folder permissions are they amended on the drive folders (if so how would this affect going back to XP)
are the folder permissions somehow stored in the registry, which means if I restore an old virtual drive from backup, does W7 now know the permissions & apply them to the back up drive, even though those folders were never accessed in W7?By the way, anybody reading this that does not know about Cryptainer, should look at it very seriously, I now have no data files on drive C, & all my data files in the cryptainer vault are compact & virtually impossible to be opened without a password up to 100 char long!
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Sep 21, 2011
The application i installed at pc is function. But just when i want to save data into drive c through the application. the access is denied.
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Jun 2, 2011
My problem is that I am creating system tools for windows with a good gui and I don't know how to start with it. One of my difficulties is making code for calling any window tools for example, defragment.msc, backup, system restore, registry editor(I knew there's already a thread in here but it is closed).In short, I will create a "Utility tools ALL IN ONE" for my project somewhat like a registry cleaner or advance system optimizer and the likes.
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Feb 24, 2009
I have create a vb.net app that creates an excel spreadsheet. When I deployed the app, to the shared drive, I have no problems but the user gets the below error. The user can create the spreadsheet but gets the error when writing. When the user logs onto my PC, the user does not get the error. When I log onto the users PC, I got the error. Application attempted to perform an operation not allowed by the security policy To grant the application the required permission, cintact your local system adminsitrator, or use the Microsoft .net framework
request for the permission type 'System.security.permissions.securitypermissions mscorlib
version 2.0.0.0 culture =neutral
Publickeytoken='b77a5c56193e089'
I have tried to use caspol but it doesn't help?
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May 30, 2011
We have a VB.NET applciation that is run from a mapped network drive. This works fine on all PCs expect those with Windows 7, on those we get the following: "application generated an exception that cannot be handled" System.Security.SecurityException was unhandled If the application folder is copied locally and run from there it works fine. I assume it is related to Windows 7 netowrk security but not sure how to work around it.
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Mar 28, 2012
I have a small project that contains three forms. The problem is that one of the forms is on a USB flash memory device(by accident)...the project works with USB flash memory device connected. I want to move the form from flash into the project on c: drive. However i think the project file (?) may keep the original path to the form and it still looks for it. The form in question has an icon which contains an arrow (is this indicating its else where?)
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Feb 19, 2012
I'm running the following WMI script to get the associations between drive letters and physical drives on the system, but for some reason it omits CDROMs/DVD-ROMs. Can someone tell me how to get those as well?
Code:
ComputerName = "."
Set wmiServices = GetObject _
("winmgmts:{impersonationLevel=Impersonate}!//" & ComputerName)
Set wmiDiskDrives = wmiServices.ExecQuery _
("SELECT DeviceID FROM Win32_DiskDrive")
[Code3]...
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Jun 16, 2009
I have a program that allows the user to enter a drive letter into a text box. The program then takes the letter and find the physical drive number (i.e. deviceharddisk3..). It then stripes out everything and leaves me with the number 3.
In VB6 I used mDrive.bas from vbAccelerator.com and it worked perfectly. I have been all over the internet and back and cannot find a solution written in VB.NET.
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Oct 13, 2009
I want to make a tool that will assign a USB pen drive a drive letter, I am using WMI to acknowledge the device being plugged in, I can pull the deviceID, name, etc now I just need to work out how to assign the device to a drive and I just cant figure it out
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Feb 25, 2011
I wrote a DVD player in VS2010, based on the COM component mswebdvd.dll, which works fine on a 32 bit XP machine. When I try to write something similar on a 64 bit Windows 7 machine something odd happens. I have mswebdvd set up as a project reference and as a control in the toolbox, and when I create an instance of it on the form I apparently have access to all its methods and properties...but when it is 'playing' the DVD the form object remains as a black box and there is no sound. I have title numbers, run times, play state etc displayed in textboxes and everything is normal, with play stopping as expected at the end of each title. The dll evidently thinks it's doing its job but there is no sound or vision. Can anyone suggest what is happening? [code]The Windows 7 machine has one optical drive and plays DVDs perfectly well on installed software (PowerDVD).
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Mar 8, 2012
My VB app will not work properly on a Windows 7 64 bit PC.When I launched it on the Win7 PC it will open up OK but when I open a crystal report, the form page comes up ok but the report is missing.Then I get a pop up window asking me for a user name an PW:
[Code]...
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Mar 5, 2009
how can i make my programs work i am using in my programs framework 3.5 and i make to my programs build publish so is effect on any thing
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Apr 18, 2011
I am having a problem with my code now that I have changed from Vista to Windows 7. For some reason the following code does not work anymore in Windows 7. It seems that Progman is replaced by WorkerV.
<Runtime.InteropServices.DllImport("User32.dll")> _
Public Shared Function FindWindowEx(ByVal hwndParent As IntPtr, ByVal hwndChild As IntPtr, ByVal className As String, ByVal caption As String) As IntPtr
[code]....
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