Deployment :: Performing A Serial Port Function Halts / Locks Up On The Vista Machine
Sep 16, 2009
I have created an application using VB 2008 Express on an XP machine. I created a deployment package and installed it on other XP machines with no problems. I tried it on a Vista machine and all seemed well until performing a serial port function. It simply halts/locks up. I have to close it in task mangler. I thought I would circumvent the problem by building and publishing it on the Vista machine. While running the program from VB express the program functions perfectly on that Vista machine, but when I publish and install it on same it still crashes at the serial portion of the program.
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Nov 1, 2010
I am working on an application on serial port communication with PLC machine. Now this communication is only done with one PLC at a time. So I m sending a query to PLC and until its responds back the application goes into wait mode. i.e. no other operations can be done, and an hourglass cursor should be displayed with all other components locked on the form. So how do I achieve this using vb.net?
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Jun 19, 2011
im using vb 2008 to read serial port data. my requirement is as follows, when the data is received from the serial port a timer is enabling in order to blink a button saying "tank empty". so i have written the code with the aid of this forums. but now my problem is the blinking button function is not working. first i thought its cuz timer is not enabling inside the serial_dataReceived event. so i invoked a dummy label. so the timer works. but its blinking function is not working.
[Code]...
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Aug 16, 2011
i am a absolute beginner and i want to use vb to receive data from micro controller through serial port using rs232 standards, i found this code to receive the data serially, can any one tell me where should i paste this code, so that the data received will be displayed in message box.Private Sub DataReceived(ByVal sender As System.Object, ByVal e As System.IO.Ports.SerialDataReceivedEventArgs) HandlesSerialPort1.DataReceived
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Oct 26, 2011
The link below has code to connect to a modem thru the serial port but it is for an earlier version of VB. when I convert the code, it does not fully convert and has 4 errors that prevent building the project. can someone tell me what needs to be changed or added?
[URL]
Note: the error: not CLS-Compliant
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Mar 28, 2006
I have a stand alone VB.Net 2005 application that uses a serial port that generally stays open while the application runs on a Windows XP system. In trying to bullet-proof the UI, I ran into a problem when the USB to Serial Converter normally used to provide the serial port is disconnected while the serial port is open. In trying to handle the resulting error when accessing the port, I find I cannot close the port.
When trying to do so, the error message says something like "unable to close the port. You may not have sufficient permissions." Reconnecting the USB/Serial Converter does not reactivate the port.
[Code]...
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Nov 27, 2010
I'm mohammed from Oman ,I'm visual studio.net programmer How I can Read the Data From Barcode Weight scales By Serial port and TcpIp port
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Jul 25, 2011
I have a Windows form.in windows form have a combo box that give me a list of available port serial with it code (Dim ports As String() =SerialPort.GetPortNames())for example( Com1,Com8,Com15,...).but I want to give me fullname of serial port in device manager for example in dvice manager is these (Comunication Port(COM1) - Printer Port(LPT1) And USB Serial Port(COM8)).how to Get it?
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Aug 2, 2011
If I uninstall the COM1 and reboot, it works. If I shut down (power off) and restart, I get the message below. If I uninstall then click on Scan for Hardware Changes,The given port name does not start with COM/com or does not resolve to a valid serial port. Parameter name:portName
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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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Apr 7, 2012
I have just finished my application using VB in Visual Studio 2005 and it works fine on my Win 7 development machine. But when I install and run it on an XP machine it fails with an unhandled exception:System.Runtime.InteropServices.COMException (0x80040154): Retrieving the COM class factory for component with CLSID {E8D851FA-9967-4ADF-9644-0183B9B1EA68} failed due to the following error: 80040154.
I've googled the error message and the solutions seem to be 1) compile as x86 (was doing that anyway), and 2) register the dll on the machine But firstly I'm not sure which dll I need to register, and secondly I don't want to be going around registering dlls - the whole point of the installation programs is that it should just install and configure everything automatically..
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Sep 11, 2009
I have a problem with installation in Vista. I have complied my vb.net 2.0 application using innosetup last month and installed it successful but after that i changed icon in my application and complied again. On windows vista machine i tried uninstall old version and installed new version. But the desktop and startmenu shows old icon. Does it mean uninstall did not removed the old icon ? It works fine with windows xp.
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Dec 2, 2009
I wonder if/how to use a 32 bit DLL on a 64 bit machine. The situation is like follows:Autocad Inventor(64 bit program) can launch plugin DLL's. The plugin DLL in this case is programmed with VB.NET 2008 Express edition. As far as I know, I can only choose "Any CPU" when building the DLL with the Express edition. This DLL makes uses of a COM object called Isah IERPlink, a piece of software that is used with a 32 bit package. So in my bin directory this DLL will be added "interop.IERPlink.dll". I guess this DLL is specified for 32 bit CPU's, but I'm not sure.
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Oct 22, 2009
I have written an async UDP client to talk to a server at my company. When I run on my developer machine all is well. When I deploy to another machine I get a socket exception on EndReceive the first time I send data over the socket. My dev box is Win7 and I have deployed to both an XP SP3 machine and a Server 2003 R2 machine. Below is the receive code:
[code]...
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Mar 29, 2010
I am getting the following error on a users machine who is running XP method not found 'system.string system.windows.forms.openfiledialog.get_safefilename
Do I need netframework 3.5 ?
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Oct 15, 2008
Im having problem with the Serial Port. When i run my program, "Access to the port 'COM1' is denied". What does that mean? Im not sure whats happening because theres no error in my code. Someone suggest me to use 'COM2'. Which is also the same result. I have a microcontroller, programmed and run it. And i need to capture the data onto my vb, which is on a multiline textbox. How to i do that?Just to double check my code?
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Oct 17, 2009
I cannot find the place to change my cpu to x86. When I follow the instruction in the MSDN library help, there is no option to change from 64 bit to x86.
The program will allow me to attach the database and preview the file, but after compiling the file and starting the application I ge an empty database.
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Jan 15, 2010
I made an application to give to my friends as practice for my learning, so the app works fine with XP but not on a Vista 64 bit machine. Will the app need re-coding? The app is used as a game mod, so it writes to process.
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Jan 15, 2012
I've been reading up on asynchronous function / web pages for ASP.NET 3.5 (we're not using v4 yet) but the ones I've seen all focus on performing a background task but then still coming back to finish up and send the response, after the task is complete.
What I want to do is simply kick off the background task (in this case a call to a web service) but then return a response to the browser immediately - ie. without waiting for the asynchronous task to complete. I don't even need to know if it succeeds or not.What is the best way to do that? I can't seem to find examples of kicking off what you might call an "orphan" background task in ASP.NET.
I thought of doing it via a javascript Ajax call on the page I show to the user, but the information passed to the web service is sensitive, so that's out of the question. But that kind of illustrates what I want to do.
[ed] Another idea: Is there an event in the ASP.NET model I can use which occurs after the response has been sent to the browser and the connection closed? ie. So more processing can occur without the user waiting for it?
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Jan 16, 2010
I have good working application on XP, but once I installed it on Win 7 i gor prroblems moving file from one directory to anopther.
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Jun 1, 2009
I have nerver used my application in windows vista or windows 7.It turns that WinXp SP 2 supports great but when i run it in windows 7 , it shows error like this but I can't install MDAC28 in windows 7 Because it is for windows 9x.Isn't vista/7 contain JetOledb components?.I have some other questions too in windows vista/7 there are some restriction on folder viewing .. In few of application , I used to save some info in system32 folder now those applications are also working.How we can save infos in windows 7 at system directory?
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Oct 24, 2009
I have an old app, a VB5 front end with access 97 databases all works Ok using the ...program files... folders in XP but I now have a user on Vista and we have problems opening up, and I am braced for problems saving and closing down, if we ever get there.
I sent him a c# applet which found the users folder using string Dpath = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData);
I have moved the data and all settings files to a folder C:Users[Username]AppDataLocal[My app Name][My app data Path]
The start up routine checks a settings file uses the path in the settings to re-attach the front end database to a backend database, test to see if the database uses replication and set the default data path for the rest of the app. we are failing somewhere in here I am sure. I have checked and there are no updateable files in program files
Have I got the wrong path or is there something else I should be looking for?
I have an vs2008 version of the app which is using a similar location but a SQL server database- no problems
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Jun 27, 2010
I'm retrieving Windows XP license key with this function but it does not work for Vista and Seven. How can I get the license key at both of these Windows versions?
Public Function sGetXPKey() As String
Dim result As String = String.Empty
Dim RegKey As RegistryKey = _
[code].....
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Mar 20, 2009
I have a class which reads the serial of the users HDD, basically so I can generate a unique license for that user based on HDD serial and other things.
This works fine in XP where UAC isn't an issue. However, when run on Vista it pops up security warnings and won't continue unless you turn UAC off!
Is there a "safe" way of reading this information without Vista throwing its lunch up?
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Jun 3, 2012
I am trying to buld a DLL in VB.NET 2010 that will be use to control a vending machine.Whin a call into the DLL to a function to open and setup the comport the first time its opens it just fine, but if a call into the DLL again it does not know that the port is open even if it is still open. I can check with another program and is shows the port is open and if I try to call into the DLL again to open the port I get an error that the port is already open. Any idea how to set this up so it will work
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Dec 30, 2009
i'm creating a windows form to send/receive data to/from serial port.At first : i send the data as string to the serial port .Second: i tried to read the string again for test the successfull transmission , but i recieved empty string
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Oct 21, 2011
I can find documentation (preferably with code samples) that will guide me through all the steps to activate and read from a serial port?
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Oct 31, 2010
For my application a need to set a breakstate on/off of 25ms.In Xp this runs fine when I set breakstate=true and wait for 25ms and then breakstate= false and wait 25ms.In CE6.0 when I set breakstate = true, it only throws a puls.It is even not possible to keep breakstate on.
how to solve this or is there an alternative to simulate a breakstate?
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Jan 15, 2011
can we communicate to Serial port COM1 through Microsoft Robotic Studio?We are developing wireless robot which will take data from serial por
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Mar 8, 2010
For many years, I have sent data between 2 computers using serial ports."Here is the data", "Thank you for that data!" type stuff.Where do I get more information for doing the same thing with 2 computers that are networked together? Assume a local ethernet connection.I have experimented with serial-ethernet modems and that works well but I don't want any more hardware.Is there a good thread here I should read?I want 2 VB programs running and I want to exchange data periodically.
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