VS 2010 Unlock Machine When The Application Receives The Unlock Command

May 13, 2010

My request is a difficult one. What I wish to do is unlock a machine when my program recieves a command. I have searced a lot and found nothing which helps. The reason I wish to do this is simple. I have created an application which allows me to send SMS messages to my computer via twitter. One of the commands is to lock the work station. This was implemented without any problem. However, I do not know how to unlock it when the application recieves the unlock command.


Unlock The File That Choose To Unlock?

Aug 7, 2010

At this moment, i am able to lock all the file path which taken from database. BUT, when i choose to unlock 1 particular file, it caused me some error.

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Dim strSubject As String
strSubject = Item.Subject
If Len(Trim(strSubject)) = 0 Then


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Jun 22, 2010

I have different query in access and vb.net.Sometimes record are inserted sometimes not.All coding is correct.when record is not inserted,it gives an exception that'could not open;database is locked'What is this exception???My database is not having password.

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Jul 28, 2010

I would like to create a program which able to lock several files from unauthorized person to use and unlock it when the authorized person wants to use

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Aug 30, 2009

How can we lock a file or folder so that it couldnot be opened by any1

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May 2, 2010

I know how to display attached modules but how do i check if a file is locked by a dll.

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Feb 26, 2009

I was wondering if anyone knows if there's a way to programatically unlock the currently logged in account (i.e. when the user hits Windows + L), or even to just unlock the screensaver password.

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Apr 22, 2009

is there a possible way using vb.net to lock and unlock PC Desktop? so that we will have restriction for each user? what code should i write?

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Windows Lock/unlock (with Code)?

Mar 5, 2009

i'm trying to Handle the Micosoft.Win32.SessionSwitch Event, so when Windows is going to be locked by the user, i will simply write a line to the console.When it's going to be unlocked, the same.

Here's the code:

Sub Main()
AddHandler Microsoft.Win32.SystemEvents.SessionSwitch,
_ SystemEvents_Sessionswitch()


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Feb 25, 2011

I want to find the wheather my machine(XP installed) is locked or unlocked today.

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Feb 7, 2010

i want to build a software which can lock the computer (not to lock the computer as i lock in windows) and then another software that can unlock it.

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Unlock With Voice - Program That Can Compare Voices To Stored Voice Files And Identify People

Mar 25, 2009

I have a voice program that can compare voices to stored voice files and identify people based on that. It's not the most accurate thing, since being sick or other weird things can make it fail, but it does work for the most part. I was wondering if there was a way to keep the voice recognition running during an unlock and wait for the person who locked it to come back. Upon giving the command and voice verification, if it passes, the computer is unlocked by my program. Is there anyway to do this in VB.NET?Summary: Can a program unlock a computer after it's locked?

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Jul 27, 2010

So far, i get know the way to lock and unlock file.. but in my project, i want to lock and unlock the *.exe program.

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Dec 28, 2009

I'm trying to develop a decent answering software that can reply to anything that the person inputed. For example this would be in a chat software, when the user receives Hello? the chat program would reply to the sender "Hi, how are you?" or what ever the person away has set up.[code]

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Make An App In VB Express 2010 That Receives Emails?

Jul 4, 2010

I want to make an app in VB Express 2010 that receives emails. Once an email is received the program would auto reply and send one line of text from a textbox. Then next to the line in the textbox it will put the email address of the recipient and a forward slash. So look at it this way.

Textbox1.text Contains


When that finishes then the next email that comes in would receive line 2 in the textbox and line 2 in the textbox would change like above. I think i can use a message queue from the tools in vb. And the email client is gmail.

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Application That Opens A Session To A Specific IP Port / Writes To A Test File Everything It Receives

Feb 20, 2009

I've had a search through a number of extremely useful articles on the forums, however rather than reinvent the wheel I thought I would ask if anyone already had what I am looking for..A simply little VB app that opens a session to a specific IP port and then writes to a test file everything it receives. If the connection drops, simply re-stablish it and keep listening for text to write to the file.

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VB 2010 Application Works On Windows 7 Machine But Will Not Work On Other Windows 7 Machines?

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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Send Command To Command Line From Windows Form Application?

Mar 11, 2010

I am trying to send a command to the external command line (cmd.exe) from the Windows form application that I'm writing in VB.NET (using VS2008).

I can only access the external program thru the command line (its not my program) and I must do so from a form app.

I am trying to use the following code. I am able to call a cmd.exe window, but I can't pass the command line my command.

Using mp As New Process
With mp.StartInfo
.FileName = "cmd.exe"


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May 18, 2010

I have written a program and it seems to work fine when i am running it in the environment.When I create a program to distrubute to another computer it will not run.I thought it might be a problem with the other computer but I tried to install it on the same computer I designed it on and it will not run there either.When I run it a message box pops up saying "Application cannot be started. Contact to application vendor."[code]

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Can Only Run Application On Build Machine

Jun 5, 2010

I've compiled my application and started testing it on other machines.

It crashes instantly on every machine except the build machine - I'm fairly new to programing so any pointers as to where I would start would be great.

If I install VS2008 on the test machines it runs fine...

I'm using VS2008 on Windows 7 (x64)

Application is set to compile x86

An entry is made in the event log:

EventType clr20r3, P1 5xhruzlemrj2jn2wizvzp1qaljyuxwtl, P2, P3 4c0abff3,
P4 ssmc program,

P5, P6 4c0abff3, P7 12, P8 e9, P9 system.invalidoperationexception, P10 NIL.


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Sep 1, 2011

We are using a Windows 7 virtual machine as a testing platform for our VB 6 application. Th application utilizes an Access database.The application locates the database by looking at a configuration (ini) file.When I install the application on the virtual machine, it places a database where InstallShield directs it to and writes that path to the ini file. All well and good.However,somehow a second copy of the database is created in a user local folder.

If the user uses the "run as administrator" option, the application uses the database that is in the location designated in the ini file and that works fine.  But if the user does not select the "run as administrator" option, the application apparently somehow attempts to use the local database and is unable to locate it.

Is this behavior is peculiar to the virtual machine, or is it something we need to be concerned about on "real" Windows 7 systems?If it is peculiar to the virtual machine, is there some way to get the virtual machine to behave more normally?

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Jun 9, 2011

my database on sql server 2005.my application is completely working in my computer.but on other machine sql server 2005 login error.sql server does not allow remote server.please how can i load my application on other computer.

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May 27, 2009

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Jul 14, 2010

When it is installed on a machine, it will run for all users. But for some users, it is unable to get some data from the database. I have found out that if it is run-as either administrator,or in winxp compatibility mode, it works. But if not, then some users have the problem.The database is in the same C: drive location as the exe, and it doesn't change from user to user.The computer is using windows 7 professional 32-bit.

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Jun 2, 2011

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Jun 14, 2011

My application works great on all computers here that has VS installed but it does not work on the machine that does not have VS.The app just crashes on start up with this message in the Event Viewer:

Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.TypeInitializationException[code].....

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Mar 17, 2010

We have a certain application installed on a single machine. I would like to enable/disable a button based on the existence of this application. Is there a way to check for its existence from asp.net?

the app is currently on an XP machine, but want to code for Win7 as well. VS2008 3.51. Asp.net

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Sep 29, 2009

I'm writing a VB.NET WEB application and I'm fairly new at it. What I want to do is open Excel workbooks on the client workstation so the user can "Save As" or print or basically do whatever they want with it past that point. I've done this in a windows application using System.Diagnostics but all the information I've read so far doesn't seem to work. I can open .txt and .xls files using this approach:[code]but it opens in the browser, which is not what I want. Do I need to mix Javascript with the HTML and the VB code?

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Oct 14, 2009

I have created an application which uses an sql server connection as its datasource. The problem I'm having is that the application needs to work on computer that has no network connection. How Can i change the datasource so that on runtime it can work off a machine that is not connected to a network? The datasource from the sql connection only contains one table with no data. It only needs to be updated with a target folder that can be changed to any location on any computer already written in the code.

The connection string suddenly stands as: Dim MyConnectionString As String = "Data Source=MY-PC;Initial Catalog=ImageLocs;User Id=test;Password=test;Pooling=False"

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Feb 17, 2012

I am a new member here and a new user of VB.Net.So, I would like to know how to make an application that can control the processes and the services in a remote machine.

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Jun 28, 2010

I Converted my project(Its contain the rdo2.0's) from vb6.0 to Vb.net 2005. Its working fine in development machine( in Development have the Vb6.0 and Vb.net 2005). But its not work in Client machine. Its asking the rdo2.0 introp's. How to install the rdo2.0 's to client machine with out installing vb6.0. If i installed vb6.0 at client machine its work fine. How to install rdo2.0's in client machine without vb6.0.

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Oct 19, 2009

How can an application, running on a production server, access the login username of the machine that a user is accessing an application from? For example, I am currently logged into my machine on the INTRA corporate intranet. My username will be INTRAUsername. I have added specific usernames to a database and wish to check this intranet username against the database to restrict access to an application and leverage the username across the application.Currently, I am using the following code to access the username:rivate username As String = Thread.CurrentPrincipal.Identity.Namehis is working great on localhost, but when authenticating against the database on a development server, I'm getting the following error:

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Feb 3, 2010

Ive got my application running at startup on my computer. But how can i make my application start up on any machine ? Do i need my app to create a reg key ? Also what path do i use for it to start up on other machines ?

Heres the code im using to start it up on my machine.

Private Sub Form1_FormClosing(ByVal sender As System.Object, ByVal e As System.Windows.Forms.FormClosingEventArgs) Handles MyBase.FormClosing
If CheckBox1.Checked = True Then


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Jul 20, 2011

If I develop a VB2010 Windows Forms application on a 64 bit machine, can I deploy it to a 32 bit machine?The 32 bit machine has .NET Framework 4 Extended on it.Or can I tell the 64 bit compiler to go 32 bit?  I have VS Pro on the 64 bit machine.I don't want to leave any development package on the 32 bit machine, which will be transferred to a client.jeyoung

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Sep 24, 2009

My local machine is using windows application for an appointment fixing .I want to retreive data from webserver DB which also does appointment fixing by online for the same organisation.So I want both these to work in co-ordination.As my first step I want to import data.

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I develop an application using vb.net.application will run on client server architecture.when we try to execute the program in client side then it will give me an error which is related to sqlclientexception.how can i handle this situation.i used vb.net 3.5 as front end and sql server 2000 as back end.i have done total coding with system.data.sqlclient namespace.

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Jan 1, 2011

I am trying to execute exe file on remote machine using wmi. Its basically work on 50%, but problem is interactive process it execute the app but i can't see any window or form but I can see app is running in the task manager. Does not need to be vwi, might different method, but I dont want to use psexec tool.

My function:
Public Function StartEXEonRemote(ByVal machine As String, ByVal file As String) As String
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Dim wmi_in, wmi_out As ManagementBaseObject
Dim retValue As Integer
[Code] .....

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