I have developed a small software. I want to provide and run it commercially only. I want it to be run in the machines who have purchased it from me.
If someone copies it from my clients computer and runs it in next computer, I would like to stop functioning/running the software.
I'm planning to create an VB.net application for retrieving data from a database (MS Access) and store it to a web server (MySQL data base). I really have confusion in my mind. I'm planning to use task scheduler so that the program will automatically run. I'm planning to set the time every 5 minutes.How can I avoid the redundancy of data? For example, I'm planning to get the sales for 5 minutes, after 5 minutes I will do it again. I think there will be redundancy in that case.
View 4 Repliesi have this line of code to catch an exception if a letter is inputed, or if it is out of rang as a number, but I have added WHEN to avoid catching numberical data. Now how can I use an exception error to use it before my case statement in order to avoid running the code twice, cause once the case codes has been through it will run a clear txtbox which is already taken care by the try catch, don`t if thats clear for you but i understand it. here is the code in parts...
Try
'Integer Levels: intLvls is egual to the assigned text box, the first one from
'the top, this line of code allow the user input to be captured into a variable.
VS 2008 Remember Textbox Text when Form reopens
I just finished coding a small app which access the Outlook 2007 Inbox. On my dev machine, it works OK. I created a new machine in VMWare using WinXP, Dot.Net 3.5 and Office 2007 installed and Outlook configured to my GMail account.I copied the BIN folder of my project to the new machine and ran the app and it runs OK until it scans all emails in the Inbox. This is where I get the exception:[code]When JIT debugging is enabled, any unhandled exceptionwill be sent to the JIT debugger registered on the computerrather than be handled by this dialog box.Can anyone suggest why my code can not see the Outlook 12 assembly? Do I have to create an installer file for my app before copying it to the test machine?
View 1 RepliesI am an end user of a VB based program and our windows 95 based machines are dying of old age. Before getting my boss to agree to my trying out a newer machine I would like to know if there is any chance of getting this program to run.
I know that I need to be able to drive 3 serial (485 / 422/ 232) ports one of which is on an ISA bus and the other 2 are located internally on the motherboard. Another factor in trying to do this is the drivers are missing for the 485 card and I hoped
to be able to locate newer drivers easier.I think the VB code was created under VB3, but we do not have the expertise / tools to be able to disassemble the .exe file.
Here's the situation - I have a vb.net exe compiled for X86 machines using 2 dll's... Because one of the dll's was only provided in 32 bit, and I didn't want to have to deal with 32/64 versions, I forced 32 bit in compile options and everything was fine. Now I have a 64 bit workstation that is throwing an error about the sqlite.dll (error #1 below).
after reading around I am starting to understand a lot of people are having this issue. I tried replacing the dll on the client machine with the 64 bit version of sqlite and that didn't work (error #2). I read somewhere that the 64 bit version requires VC 2010 redistro, but that didn't work. I can't compile this app as a 64 bit because of the other dll is 32 bit.
[Code]...
I just tried running my application on a different computer and it simply wont run. I get this error.
when i click on debug, it says "an error occured creating the form. See excpetion.innerexception for details. The error is' Could not load type
my app interacts with excel. im running office2007 on my dev machine but the target machine running office2010.i had this problem before where i had to remove office12, install 11 and recompile the project to get it to work on the clients machine, adding multiple references didn't help. is there a work around, or a library that works with any excel version.
View 2 RepliesI have made an application using VB.NET which is used inhouse. In order to avoid everytime changing of exe on user's (multiple user) machine I want to use shortcut of exe on user's machine.
Where EXE is placed in one central location(Server).
I am getting bellow error on user's machine :
Request for the permission of type 'System.Data.Odbc.OdbcPermission, System.Data,
Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.
Error after clicking on ok button:
Application attempted to perform not allowed by the security policy.Togrant this application the required permission,contact your system administrator,or use the Microsoft .NET Framework Configuration tool.
[Code]....
I am trying to get a list of processes running on remote machine and the username running them. So far I've got:
Dim ps As System.Diagnostics.Process
For Each ps In System.Diagnostics.Process.GetProcesses("myserver")
ListBox1.Items.Add(ps.ProcessName)
Next
I have developed a 32-bit VB.NET application that runs fine on 32-bit systems. Some of the folks in engineering, however, are using 64-bit machines, so we have created 32-bit virtual PCs and installed the application on the Virtual PC. When we try to run it, however, the application fails to establish a connection to the SQL server (remote, SQL 2000) for login validation.
View 11 Repliesi want to list the processes running on other machines on LAN and then to kill one/many process(es).
Just copied a saved VB 2005 project to a new machin which has VB 2005. When I build or rebuild this project I get one error and 14 Warnings...Warnings and error are:Warning 1 The referenced component 'LCC11' could not be found.Warning 2 The referenced component 'Microsoft.Office.Core' could not be found. Warning 3 The referenced component 'Microsoft.Office.Interop.Word' could not be found.
[Code]...
The conditions are I don't have administrator privilege I want to see the status of a service in remote machine (server)I use the following code (vb.net with framework 2.0) to see the status
Dim sqlSvc As ServiceController
Svc = New ServiceController(My.Settings.serviceName, My.Settings.machineName)
If sqlSvc.Status.ToString.Equals("Running") Then
displayStatus("success", sqlSvc.Status.ToString)
Else
displayStatus("error", sqlSvc.Status.ToString)
End If
When running the code, InvalidOperationException is raised and found out that I need admin right in the server.Can I lookup the status of the service without having admin right in remote machine ?
I just want to write code inside my assembly to detect whether it is running on a "desktop machine", or inside the context of an ASP.NET application. This is crucial guys, (licensing purposes), and I don't want to get fired because I did a mistake.So, please, be direct and if you please give me some code snippet.
EDIT v 2.0: What about using in the assembly:
[assembly: "AspNetHostingPermission (SecurityAction.RequestRefuge, Unrestricted=true)]"
to prevent the execution on the web?
I want to display in a listbox all the running processes on the local machine. Can anyone offer me some code to do this.
View 2 RepliesI have some programs written in VB2010 using functions from a DLL. I have compiled and run these programs on a 32bit XP computer and a 32bit Win7 computer and have had no problems accessing the DLL.I have published an installation of these programs and tried running the install on a 64bit Win7 machine and the installation is performed correctly. It installs the programs and copies the required DLL into the same folder. the problem is that whenever I run the software and try to access the DLL I get errors.
The error says something like:
An unhandled exception has occurred in your application. An attempt was made to load a program with an incorrect format. (Exception from HRESULT:0x8007000B)
If I click past it the software runs and all of the forms are loaded properly, but anytime in the software if I try to access the DLL I get the same error.I am declaring functions in the DLL like this:
Public Declare Function OpenDriver Lib "OP815M.DLL" (ByVal handle_Renamed As Integer) As Integer
I have also tried placing the DLL in the system32 directory and also the sysWOW64 directory and that did not help as well.I do recall that hardware drivers need to be properly signed and pass the Microsoft Logo testing. Must I get the DLLs I am using properly signed?
Edit: Also it might be fair to mention that I have used the DLL with another program written in C, which would run in the DOS command line in Windows and it correctly accesses the DLL on a 64bit machine, but just when run from the DOS command line in windows.
I am building a Setup project for a Web system using Visual Studio 2008. I upgraded my development machine from Windows Xp to Windows 7. The problem started with Windows 7. Whenever I try to build I get the above error. I ve tried several solutions given online but I ve failed to get a solution. When I transfer the system to a machine running Windows Xp or Windows 2003 Server it builds successfuly.
View 4 RepliesI have a copying error with my program. I am trying to copy the internet cache folder, and the error states that some files cannont be copied (read only maybe?) How can i make it copy, or just skip the uncopyable files?
My.Computer.FileSystem.CopyDirectory(Environment.GetFolderPath(Environment.SpecialFolder.Internet Cache), "d:My Documents")
I am in Great problem, When I am running on my own machine then there is no problem creating but when I am running my project on another machine then the project generating problem which like this 'Could not load type 'TechnoAid.FrameWork.logManager' from assembly 'TechnoAid.FrameWork, Version=1.0.0.0, Culture=neutral,PublicKeyToken=null'."Source="Inventory.Metadata"TypeName="TechnoAid.FrameWork.logManager"StackTrace:
View 1 RepliesI 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.
View 6 RepliesI've inherited a lot of custom made software for an office, and, while managing it, I've found it performs differently from machine to machine.I mean, some controls get painted in weird ways in some machines but well in another, or just work differently, like in some machines clicking something selects it, and in the next machine clicking the same thing makes it editable.I suspect, o course, of the myriad of DLL the software loads
View 2 RepliesI want to block a perticular machine from accessing my machine..Both the machines are in LAN..I dont want a perticular machine to access my computer How can i achieve this...I want to do this using VB.NetAny idea....
View 9 RepliesI had done one application using api which send the message to given number. The working of software is very fine without any error working on windows XP SP2. I heard that vista already contain the .net frame work so didnt installed .net frame work in machine. I checked in vista it shows .net frame work is in machine. But when same code i tried to run on Vista it gives the error. Error is as follows
See the end of this message for details on invoking
just-in-time (JIT) debugging instead of this dialog box.
************** Exception Text **************
System.AccessViolationException: Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
at SmsSendingApplication.frmSingleMessage.InternetOpenUrl(Int64 hInternetSession, String& lpszUrl, String& lpszHeaders, Int64 dwHeadersLength, Int64 dwFlags, Int64
[Code].....
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 RepliesUntil asking a question on here I never considered (enums) to be a "bad thing." For those out there that consider them not to be best practice, what are some approachs/patterns for avoiding their use in code?
Edit:
public Enum SomeStatus
Approved = 1
Denied = 2
Pending =3
end Enum
Is it possible to re-use a DataTable in .net? Here's an example from code-behind:
[Code]...
i have a list of items in a listbox:-
A
B
C
and i have a button that adds these items by selecting them to a datagrid how can i avoid adding A or B or C twice to the datagrid?
I can cheack another instance running r not then i closed the newly created instance
but nw my problem is i need to show the previously running instance if the previous instance minimized or hided
i m using the foolowing code to find the previous instance[code]...
My [code]...
But how i avoid when you selected nothing, you can delete.