Check When Path Is On Network?

Feb 11, 2010

In my app I have a dialog in which the user can select a database backup location. If want to warn the user if the location he/she selected is "probably not secure".[code]...

How can I get this kind of info about a selected folder? I know about the DriveInfo class, but it only handles drive letter, not UNC


Windows - Have The Physical Path By Giving The Network Path?

Nov 29, 2010

Well now i have an issue which is pointing in the use of "path's" physical and network.I have a SQL server on a Server machine and i have a desktop machine used as client.I'm runing from my client machine a stored procedure in order to add a streaming data base.But also before i run this procedure i run another one which prepare the desired "path", this procedure takes:


in order to run the first procedure i have to turn myPath in each physical name:


Now my Issue is how i will have the physical path, which is build it on the server and which it's from very difficult (to imposible) to know it? Basically i need a function which will return me the physical path, which the implementation it's not knowing to me. My developing environment is 2010?

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Application Path Over Network

Jul 28, 2011

I have an application in that runs over a network. Actually shortcut of the exe file is shared over LAN, so databases remain on one computer where the application has been installed. Everything works great except one thing. The logo of this application is saved in a database, that reports can pick to load picture. The logo file is chosen by the user, using OpenFileDialog and then saved in database. It is saved like D: Picturesfilename. jpg When I run the application from network (using shortcut that we have made to the main exe file), it given error on D:Picturesfilename.jpg because this doe not exits in the system that is running the shortcut. How to save the logo path in a way that it always finds it in application directory, when run over the network.

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How To Get UNC Path Of Network Drive

Jul 10, 2009

I am using some like following code to get UNC path of drive letter.
Dim query As New System.Management.ObjectQuery("select * from Win32_LogicalDisk")
Using searcher As New System.Management.ManagementObjectSearcher(Query)
'loops for all drives on system
For Each Mgmt As System.Management.ManagementObject In searcher.Get()

And it was working but now it is giving error. Below is error with stack trace
{"Specified cast is not valid."}
at System.Management.ThreadDispatch.Start()
at System.Management.ManagementScope.Initialize()
at System.Management.ManagementObjectSearcher.Initialize()
at System.Management.ManagementObjectSearcher.Get()

I also want to know alternative way to get unc path of drive that is also not depend on windows API. As there is a class driveinfo to get all drives (including network) on system. Is there any class that also provide complete or unc path information of Drive.

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How To Register Dll From Network Path

Jun 22, 2009


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Get Default Printer Name With Network Path?

Mar 25, 2009

I want to get the default printer name with the network path. Because i am using the network printer as a default printer. So i need this in VB.NET or C#.Net.

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Change The Path For A Network Drive Already Mapped?

Sep 16, 2009

We are getting a new server and we already have a Z: drive mapped, and we want to use the same letter and just change the path without touching all machines. I am looking for a simple VBscript to do that.I have one that will remove and one that will add, but I need to have on script.

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Create File Or Directory On Network Path?

Feb 21, 2011

I have a VB 6.0 code that creates file/directory on given path. If the path is local or a mapped drive then it's working fine but if I am having a network path like \netpathputfileshere" then it is not working. If I mapped "\netpathputfileshere" to some x: drive on local then it will work fine BUT I need not mapped this path. So is there any way to do this directly on network path. I get error for ChDrive "\netpathpullfileshere"

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Using Directory.Exists On Network Sharing UNC Path

Aug 19, 2009

I'm building an application which require to use Directory.Exists on a network share UNC path. I know how to use that function, and how to implement it in my code, it's working perfecty locally.

Here my setup:
- VS2003
- .NET 1.1
- It's an Outlook Add-In

Here the code :
Dim realpath as string = "\myserverfolder$subfolder"
Impersonation.ImpersonateUser("admin", "DOMAIN", "adminpass")
Dim isDirExist As Boolean = Directory.Exists(realpath)
If isDirExist = False Then
End If

If I build this code, and register it in Outlook with my personnal account (admin), it's working fine, I receive true. If I build this same code, an register it in the Outlook of a normal employee (user only), it's always returning FALSE, no matter if the directory exist or not. The share is set to everyone allow, and I tried giving everyone access to the ACL, and it's the same result.

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VS 2008 Get Path Of Mapped Network Drive?

Dec 23, 2009

I was expecting this to be easy but it seems that it is not... all I want to do is loop through all drives on a computer and if the drive is a network drive then get the UNC path that this network drive maps to. Simples. I was expecting to just do this:
For Each drv In IO.DriveInfo.GetDrives()
If drv.DriveType = IO.DriveType.Network Then
End If


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Network Tree Discovery - Get The FULL Path Of The Address

Mar 24, 2012

Lets say that Computer 2 connects to an external server. How can that server get the FULL path of the address, not only the IP of the first router?(of course in

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VS 2005 - Datasource - Network Path Is Not Supported For Database Files

May 20, 2010

i have a win app in vb2005 but when i want to create a data-source to connect with my database i got this error: The file \CATV-ANTIVIRUSdata|CLINICA_Data.mdf is on a network path that is not supported for database files.

An attempt to attach an auto-named database for file \CATV-ANTIVIRUSdataCLINICA_Data.mdf failed. a database with the same name exists, or specified file cannot be opened, or it is located on UNC share. i need the datasource to start creating datareports but i don't know how to resolve this problem before.

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[2008] Get The Path Of Special Folders (My Network Places - Recycle Bin)

Mar 2, 2009

Where can I get the paths for "My Network Places" and "Recycle Bin"? Environment.SpecialFolder contains the following entries but not "My Network Places" and "Recycle Bin":


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2003 - Program Running Under Alternate Credentials - Option To Open A UNC Path To A Network Share

Sep 8, 2010

I have a program written in 2003 that are folks run under alternate credentials. Inside the app there is an option to open a UNC path to a network share. We were running Windows XP SP3 and IE6. The code is simple just a call to the explorer.exe with /root,\UNCPath. After installing IE 8 onto the machine this no longer works. Best I can tell the code is still working but now being executed in non interactive mode so nothing opens up. You can however see a new spawned explorer.exe running under the system account for each attempt at opening a UNC Path. Any ideas what IE8 could have done to cause this behavior?

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Check To See That A Specific Network Is Available?

Dec 22, 2009

I'm writing an application that will be used in a mobile environment where network connectivity will be up/down regularly. How do I check to see that a specific network is available?

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Check If Directory Exists On Network?

Jun 5, 2012

I can't seem to work this out... I've got a program that references a network path. The problem is that the network files are not found when I run the program from various computers. If I have the user navigate to the network path directoy and then run the program it works perfectly.

The problem is that whenever the machine is restarted I run into the same problem and have to manually navigate to that path before the program will be able to find the files.

I then tried several checks to see if the directory exists but it's not working.

Public Sub FillListBox()
If My.Computer.FileSystem.DirectoryExists("\AB eamportalShared%20DocumentsJustin%27s%20AppsFeedback") Then


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Check Internet / Network Connection ?

Nov 19, 2011

This is the work of one responder for the most part, and is not indicative of the quality of most of the posts.But you can judge that for yourself.

If you are writing a program that is used to monitor the status of your network, then this thread may not be of interest.

If you are an application programmer that uses network resources to accomplish your goal, i.e. you are using SMTP, FTP, HTTP, NNTP, NTP etc., and you think that you need to check for a connection first, then read on.Follow up to this.Before getting all geeky let's take a little detour...

Five days a week I get up, eat breakfast, check my email, forums, etc., take a shower, get dressed, and then drive to school.Many of you probably have a similar routine.What is interesting about that is not what we do, but what we dont do,because of our expectations and experience.Here is what I dont do.

I dont stick my finger in the electrical socket to see if there is electricity for the coffee maker and toaster.I dont fire up the command prompt and ping some host on the internet to see if I have connectivity.I dont check the battery, tires, water level, clutch fluid level, washer fluid level, etc.,before I drive off.

All of that is based on expectation and experience.So why would you write an application that pings the internet before it did something (SMTP, FTP, HTTP, NNTP, NTP etc)????Is your experience or expectation that the network will be down?To illustrate and hopefully convince you that, like Oblio, it is pointless, create a new form with three buttons. In the following examples I use a WebRequest / WebResponse as my 'Something'.Here is what some think is a good approach, the classic ping-then-do, what I think you shouldn't do.[code]....What is wrong with this code is that all of the network IO is being done without a Try / Catch block.

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VBScript To Check The Network Connexion?

Sep 25, 2009

What solutions are available in a VBScript (XP and 2003 environment) to check the network connexion (slow/fast)?Something similar to GPO slow network detection.

The customer would like a solution that do not requires to deploy a new executable but that uses an existing object model property accessible from VBS.

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Check For Share And File In Local Network?

Jan 1, 2010

I am developing an application, which hunts the local network for attached computers then checks for a share and a file, if found it displays it in a listbox. While testing this I have seen some strange Chinese or Japanese computer names pop up and in a few seconds go away, the names seem to always be different.

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Check If A Network Drive Is Mapped Persistently?

Oct 18, 2009

I use the following code to layout network drives on a system. I want to add a third column for persistence but in I do not know how to check if a drive has a persistent map or not.

For Each drive_info As DriveInfo In DriveInfo.GetDrives()
If drive_info.DriveType().ToString = "Network" Then
With maps.Items.Add(drive_info.Name)


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Network Messenger Needs Improvments And Ideas Please Check It Out

Mar 10, 2011

So I have had some "free" time at work and came across a write up some where on these forums yesterday for a messenger system. I would REALLY like to give credit where credit is due because alot of the source for this was borrowed from the write up on here but I don't remember where the write up is located or who wrote it so please if you have a link to it post it. Thank you again to who ever wrote it. Any how on to this. I have expanded the origional messenger I found on d.i.c to include multi-user "chat" if you will. It is still a basic p2p messanging system because you can only talk to one person at a time but you can speak to multiple people in the same window. So far I have been able to get it to work across our LAN here at the office but am wondering if I can change the text file locations to an FTP some how and make it internet based. I am sorry for the uncommented code as I was in a rush cranking this out but it is fairly simple so you should be able to read through it with ease.[code]

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Application Event To Check Network Drive Availability

Nov 29, 2011

I want to execute some code when a network drive is available. Just like our application even have NetworkAvailabilityChanged. I want this to work just like our Application Events.

Private Sub MyApplication_NetworkAvailabilityChanged(ByVal sender As Object, ByVal e As Microsoft.VisualBasic.Devices.NetworkAvailableEventArgs) Handles Me.NetworkAvailabilityChanged
End Sub
Private Sub MyApplication_Shutdown(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Shutdown
[Code] .....

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Check If A Computer Is Connected To Domain Or Only A Local Network?

Oct 27, 2010

i need to check if my Computer is connected with an Active Directory Domain or only in a Workgroup. Is this possible?

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VS 2008 Network App - Send Message Or Network Package To Some Of The Clients In The Network

Aug 18, 2009

Here is my idea so far: I have a bunch of computers connected in a local network. One of them is a MySQL server, one will have a vb.NET program wich will act as a "second server" and the rest will be different clients. What I want to do is that the "second server" will send out some kind of message or network package to some of the clients in the network, and they will execute a code based on what message it is, or what kind of package it is. I'll give you a simple example:


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Getting A Check For A Settings Path?

Apr 24, 2010

I have a app config file with a filewatch file path as a setting. This way the user can change that file path easily on site. My problem comes into play when the file path, usually to another computer on the network is not valid, then I will get a not so nice microsoft error. I would like to catch this error, and put in a friendly msgbox to tell the user it's just an invalid file path. But the file watch is on my first form on the program, and having the catch on the onload of the form is not soon enough. I can catch the error on the form1.designer.vb, but I don't think your suppose to modify that. Cause when I do, bad things happen, like i'm not able to get my form in design mode.

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Access To The Path 'C:\Check.txt' Is Denied?

Mar 13, 2009

To write a new file to the hard drive Ive always used for example:- FileOpen(1, "C:\FileName.txt", OpenMode.Output) Trying this today I get an error message Access to the path 'C:\Check.txt' is denied.MSDN say I should use: - Dim file As System.IO.FileStream file = System.IO.File.Create("c:\test.txt")So although I couldnt see how to specify the mode I tried: Dim file As System.IO.FileStream file = System.IO.File.Create("c:\Check.txt")With exactly the same result Access to the path 'C:\Check.txt' is denied. It says I dont have permission.

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Check If A Shared Folder Or Ftp Path Is Available

May 27, 2009

Is there a code checking that whether a shared folder is available?? Or check whether ftp path is available?

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Check The Connection Of Server Path?

Mar 23, 2009

I want to check the connection of server path eg[ URL] whether exists or notI tried this System.IO.Directory.Exists("http://localhost/MyProject/ ")but it always return false.So does anybody know how to check it?

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Check Whether A Program Is Installed And Find The Path?

Jul 26, 2009

I want to make a program which first of all check whether a serie of programs is installed, if a program is installed I would like to find the installation path, so I will be able to work with it further..My first though was to check in the registry, there is theinstallation path also mentioned right?Another possible way was to search all the harddrives for a specific .exe fil. If then the file is found, the program is installed, and you should be able to find the path to the found .exe file. This is more "secure", right? - Because not all program is registred in the registry right? (E.g. if you move it from another location, and doesn't install it).

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Error - Access To The Path 'C:Check.txt' Is Denied

Mar 13, 2009

To write a new file to the hard drive I�ve always used (for example):-

FileOpen(1, "C:FileName.txt", OpenMode.Output)

Trying this today I get an error message� Access to the path 'C:Check.txt' is denied. MSDN say I should use: -

Dim file As System.IO.FileStream
file = System.IO.File.Create("c: est.txt")

So although I couldn�t see how to specify the mode� I tried: -

Dim file As System.IO.FileStream
file = System.IO.File.Create("c:Check.txt")

With exactly the same result� Access to the path 'C:Check.txt' is denied. It says I don�t have permission.

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How To Check If Game.exe Exists On A User Input Path

Apr 20, 2011

how do i check if the "game.exe" exists on the path that the user has selected?

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VS 2008 Check Server Availability - Determine If The Path Is Available Or Not?

Nov 17, 2009

I have a program that copies files to several servers in succession. If one of those servers is unavailable for any reason, my program hangs for about a minute before it continues on to the next server. Is there a quicker way to determine if the path is available or not?

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VS 2008 LDAP Check Path Exists When Authentication Is None

May 15, 2009

LDAP check dir exists when authentication is none Experts I am try to check if an LDAP path exists and the following code works fine if the AuthenticationType is not none. How do you check this if the LDAP does not use authentication?


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Sockets - Check That If Another Computer In The Network Send Some String Data To The Listener Computer?

Mar 19, 2012

i have a task to create a TCP Server (a program that is listening on its network card interfaces for incoming data stream).I have search on the internet and i found that i can use two methods : Socket or TCPListener class.I have created an example for Socket class, but i wondering how could i test it? I need to check that if another computer in the network send some string data to the listener computer , then this message should be displayed.Here is the example from microsoft that i am using for TCP Server using Socket:

Public Shared Sub Main()
' Data buffer for incoming data.
Dim data = nothingc[code]....

But it does not work because of the PORT setting.If in the TCP Server i have "Dim localEndPoint As New IPEndPoint(ipAddress, 0)" the client crashes, but if i change the port from any (0) to 11000 for example,the client works fine.Do you know why?

Later edit2:Maybe i should have started with this question:Which method is recommended for my scope?asynchronous or synchronous method ?

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Aug 22, 2006

I have a Access program and I'm using VBA code in the backgroundto run Winunzip using shell command. Well, the path of the.zipfile has spaces in it and it's not recongizing the path as a valid path. Is there a another way to tackle this problem besides the shell?I can't us pkzip either. Has you can see I had to use progra~1 instead of Program Files.[code]

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VS 2008 My.Computer.Network.Ping() Cannot See Network Under Windows 7

Nov 18, 2011

I have a .NET 2.0 *.dll that calls My.Computer.Network.Ping(). The *.dll is then run out of an *.exe via AppDomain.CreateDomain() and Invoke(). The problem is that this works just fine under Windows XP but under Windows 7, I get an exception saying that no network connection is available. I tried the Ping() call out of a small console application under Windows 7 and it works just fine.


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.net - Using A FileStream On A Network When The Network Drops?

Mar 26, 2012

I am writing some code as part of a framework for opening a file.The file is of custom type and should not be opened by more than one instance of my application. To stop multiple file opening I use a filestream to create a lock file and then keep said filestream open. This seems to work in preventing another instance of my application from opening the file ( as it will fail in recreating the lock stream in the files open code ) but if the file is on a network share and the network drops then the original application also can not access the file any more.The code to get the lock stream is as follows:

' We need to keep this stream alive to prevent other applications gaining access to the lock
mLockStream = New FileStream(mLockPath, FileMode.CreateNew, FileAccess.Write, FileShare.None)[code]....

In this I create the lock stream the first time round and then if another application tries to create it, it throws an exception and stops them from getting any further. This is kind of how it needs to work, unfortunately as I said, if this is done across a network and then the network connection is dropped for some reason then I can not delete the lock stream as I get an IOException telling me a process cannot access the file as it is open in another process ( which shouldn't be happening I don't think).

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Interface And Graphics :: Drawing Dotted Path Lines, With Even Dots Along The Path Line?

Apr 13, 2012

Problem drawing dotted path lines, with even dots along the path line.I want to draw a path line that can be any shape (square, round, outline etc), and along this path line I want even dots to appear.

I also want to be able to resize the shape (as in the example attached)This is very easy to do using "DrawPath" and defining points for the path and using a pen defined as dots.The problem I have is I want the dots to be evenly placed along the path, on any shape or size I draw.In the example I have created, I create a square with 4 points and draw a dotted path.There are 2 buttons that allows me to resize the square (larger or smaller) this helps show the problem more clearly.

The path starts at the top left corner and finishes back at the top left corner, the dots are evenly placed along the path, except the final dots at the end of the path. (Sometimes the dots are even and other times they are not even).The shapes I want to draw can be any size and any shape, but I have used a square in this example to show the problem I have. point me in the direction I need to go that allows me to draw the dots and give the impression that they are even all along the path, for all shapes and sizes.

In the pictures below if you change the size of the shape, one will have even looking dots, the other will not.


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Make The Media Path To The Video Path Stay Consistent No Matter Where Go?

Dec 7, 2010

i used the following codes:

private mediapath as string = "C:movie.avi"
private form1_loads blah blah blah


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Create A Function To Convert A Mapped Drive Path To A UNC Path?

Apr 7, 2009

I am trying to create a function to convert a mapped drive path to a UNC path. I did some googling and found several different pages on the matter. I am most interested in the first one, but I cannot seem to get the code to cooperate. Since the original post was in C#, here is my VB.NET conversion:


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