VS 2008 What Approaches Are There For Networking App And Copyprotecting It At Same Time
Dec 7, 2010
I have a small application that is currently released. It does not use any database technologies. I built into it some simple copy protection that allows the app to run as a 10 day trial. After this it needs a licence number that I generate based on a code my app provides to the user.This works great for one or two standalone machines but I am now being asked about more flexible pre activated site licencing. Currently this is a bit beyond my skills. I need pointing in the right direction. I assume if I remove my copyprotection and install on a network share, that my app will run.My app also stores some data in the registry which includes the serial number and copy protection data. I could probably switch this to a local file if this helps.What approaches are there for networking my app and copyprotecting it at the same time?
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Mar 23, 2009
how should i implement networking through vb.net 2008?
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Jan 2, 2009
A peaceful 2009 to everyone! How could i create a social networking site using visual asic.net 2009, i will need reports as administrator, kindly email your answer to {REMOVED}
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Jan 14, 2010
I made my own advanced networking system which uses System.IO.Streamwriter and Streamreader but offline. I would like to let this use a directory online, I have a webhost available for that, now how do I say to the program it has to look at a specific map with all the users information?
I now have already this into my login form:
Private Sub btnLogin_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnLogin.Click
On Error GoTo A
[CODE]...
Just curious if I can let my network grow out international instead of pc. Also I have a second question. I made a create account page which is supposted to make a text file with the txtUserName and txtPassword inputs, but it does create the file, but doesnt write any lines into it.
Code here:
Private Sub btnCreate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCreate.Click
Dim UserGenerator As System.IO.StreamWriter
[CODE]...
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Feb 15, 2011
I recently read about using SynchronizationContext objects to control the execution thread for some code. I have been using a generic subroutine to handle (possibly) cross-thread calls for things like updating UI controls that utilize Invoke. I'm an amateur and have a hard time understanding the pros and cons of any particular approach. I am looking for some insight on which approach might be preferable and why.Update: This question is motivated, in part, by statements such as the following from the MSDN page on Control.InvokeRequired
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Apr 25, 2011
link where Programmers like me who are new and not very proficient in Vb.Net and ASp.NET..
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Jan 22, 2012
Just want a clarification about who to access a database through a network, her's a scenario:there is a client running a vb application, the application starts with a login form, when the user and password is supplied, a new form is shown including a datagridview with data populated from the remote machine running sql server. ide be thankful if u supply a code snippet for the connection part, and ille continue from there.
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May 25, 2010
How can I return the IPv4 address in VB.Net? E.g. 192.168.1.5
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Aug 2, 2011
why is this code not working?
Dim tcplistener As New System.Net.Sockets.TcpListener
This does not compile with the error "Overload resolution failed because no accessible 'New' accepts this number of arguments." The thing is, I have to declare it as New because otherwise I will get a null-reference exception...
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Aug 25, 2011
i've been wanting to do this for a few years now and it amazes me that no one can come up with a solution.i want to write a program (preferably in vb.net) that can send a message to another computer (or device) that is connected to the same network as me. I want the message to appear on the other computer (or device) in a popup message box. Also, it would be ideal if this could be done through some sort of bluetooth connection, if not then local ip connection will do. I don't know how i would go about doing this but i know it's possible because i've seen some programs do it... in fact i've seen a program called blackrain that without any additional software installed, can display messages on an ipod touch screen to instruct the yser what to do, and then display the results from their input on the computer screen, almost instantly. I would like to know how that works as well if anyone has any thoughts please feel free to share them!
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Oct 29, 2011
I'm realizing a .NET chat application but i still have that error: I can send only a message per connection. For example. With the code below, i can send only one message that can be received correctly by the other peer, but if i send another message message, on the same connection,it won't be received by the remote PC. Here is the code:
[Code]...
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Nov 3, 2010
I just made my project, I just wanna ask is possible to share your project to the other computer, like file sharing or networking, which you can access your project to the other computer, is that possible? If possible, how should I do that?
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Aug 14, 2009
As winsock, in the case of VB, what is the control or package available for networking in .net?
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Dec 4, 2011
I am a Network Administrator in the Army so programming is not my strong area. I have been messing with Batch files and WMI, just recently i started VB Scripts (VERY BASIC) like adding an input box to set computer name, scan network for computer name on domain, return wmi info for that remote computer etc... I know there are programs out there that can do all of this, however the Army will only allow certain approved programs to be installed on government workstations, i have been using .Bat files to gather info which is fine, however it is very time consuming when you have entire subnets with computers, networked printers, etc to place into a spreadhseet for higher headquarters tracking not to mention the over 20 columns of required data to track for each computer. I have VB 2010 Express, working on a Windows Form Application Project. Goal is to interface my VB Script (written with notepad) with a GUI that will generate an internal spreadsheet on the form window in a datagridview. So far i have the basic window and i have my gridview with my column headers set. How do i get the data into the columns and rows accordingly.
Application Basic: Execute Program, in main window select button (Scan IP Range) <--- I want this to open an input box for the beginning subnet, input base address to start scan from, next input box for end range, then msgbox for start scan. i want the results of the scan to autofill the datagridview and add new row for each IP address that had a ping reply, returning valid data from WMI results as it receives the data. What would be the best method to achieve my goal. i am not asking you to write the program, i have been looking and studying MULTIPLE sites, think i just need another set of eyes on this to unlock the knowledge i have locked away, if ya know what i mean. Also, if you don't mind let me know what you think of this app im trying to turn out... Super Thanks for your help.This is the Base Batch File running. It calls an external VB Script written in notepad. (I want this implemented into the app form so there is no console window.)This is the inputbox from external VB Script that is called.This the result of the external VB Script (the info i want to put in the datagridview of the app.)I also, for some reason can't get scroll bars to show in the app when i hit F5, theres about 15 columns passed the MAC column...?
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Apr 18, 2012
Am working a vb.net 2008 project using ms access database 2007 and i successfuly finished it. i published the project and burnt it with cd. my database path in vb.net was located c:Deploydatabase.accdb.
so i installed the program in to another 2 networking PCs. when i run them and put the database path c:Deploydatabase.accdb in every computer, its working. but the problem is that:
i need the database to be accessed by server or my machine for instance where every other networking computers are able to access my database in this location of my machine (my be as defualt) without not putting it to their pcs.
This enables me to see what every machines users can add information to the program.
for example, i have got 10 computers networked each other (i.e comp1, comp2, comp3, comp4, comp5, comp6, comp7, comp8, comp9, comp10). i have installed the program in every computers so when/if comp1 adds/edits informations to the program, then all other computers are capable of receiving this information which means comp4 can see what comp1 has entered in the program.
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May 16, 2011
Is there a way to monitor and determine the total in/out flux from and to the Internet (not just one port or one program)?
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Jun 2, 2011
In our VB.Net application, we need to get the path to our data folder in Public Documents. In our standalone application this is straighforward using the SHGetFolderPath function. However, for our network application, we run into a problem when we load the application on a Win 7 server and run it from a Win XP workstation. From the workstations, SHGetFolderPath returns the workstation's public documents folder instead of the what we want, which is the server's public documents path.Is there any way within the application to query the public documents path on the server?
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Jul 26, 2011
I'm writing a social networking application in VB.NET, with a target userbase of 1-2 million users. All user data will be in memory in a dictionary of 'User' objects with properties such as Country, Region, Age etc exposed. I need to perform search against multiple user properties in memory - I'm not using SQL.What's the most performant way to implement a 'user search' against multiple properties?
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May 3, 2009
I need a start date, a Total time passed until now, an average time per step, and a estimated time to finished. How can I do that? Also, I can close the application and when start up again I want to get the time counters as the last time, so How can I store that data is normal txt file (I say txt to take advantage of the ini app file which is a txt).
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Dec 7, 2010
I have a webserver and I upload files to my webserver from time to time. I have an ftp account which points to public_html that is main directory.
I though why give full access so I created another ftp account (e.g. test) which points to a specific folder. Now when I try to upload a file using test it fails.
For e.g.
the following code works:
My.Computer.Network.UploadFile("d:ok.txt", "ftp://mysite.com/Test/okay.txt", "main@mysite.com", "mainpw")
- this is because this a/c has access to root folder of website
now following code gives error -
My.Computer.Network.UploadFile("d:ok.txt", "ftp://mysite.com/Test/okay.txt", "test@mysite.com", "testpw")
The remote server returned an error: (550) File unavailable (e.g., file not found, no access).
Well the ftp account test has been given access to a specific folder with the name "Test". So it should at least upload to that folder.
But if I use ftp client (like filezilla) then it works.
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Sep 6, 2009
I have an ASP.NET application with a SQL Server back end. I am storing all my dates in UTC format and doing the appropriate conversions to the local time zone of the browser viewing it. One of the pages asks for a start date and end date (no times).
I am taking the start date and setting the time to 00:00:00 hours (midnight) and I'm taking the End time and adding a time of 23:59:59, so that the date range covers the whole day. Now what I'm trying to do is do a SQL query to do a search for records in this date range. The problem is, the data in SQL is in UTC time and the user is typing their dates and times in their local date and times. My quickest solution was to convert the date and time to UTC, then search the records. However, by doing this, I am to believe ASP.NET converts the given time and date to UTC based on the server time zone. How can I convert a date and time to UTC time based on the time zone of the user?
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Mar 7, 2010
im trying to convert a 24hour time input in a textbox into a 12hour format and place the answer inside another textbox 1345 = 01:45 this and also whats the easiest way to block out a number like "1365" (01:65) from being entered/run ?
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Jan 6, 2011
how can i do some modification only first time i run the application.i want to set up the folder where is a mdb file, but i want to that only at first launch of application.i select my file with openfiledialog
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Jan 15, 2010
I've been looking, but don't know the correct search criteria (english not native)I have 2 values (sometimes many more, but this is an example):
00:03:00
and
0012:21
How do I add them, of course these are time values, they are read from an collection of music files, and I would like to calculate how many hours minutes (and maybe secs) the whole collection is.
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Mar 20, 2010
Using Visual Basic Express Edition 2008 I have nearly finished my application for checking player numbers in the Irish Lottery main draws. However, I would now like to add a countdown label which shows the days, hours, minutes and seconds until the next draw. My problem here is that we play the Irish Lottery on a Wednesday and a Saturday. Both draws start at 8.00pm.
[Code]...
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Jan 24, 2012
When i run my vb project the design and the size and style of the form change The form looks like vb6 forms
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Jul 19, 2009
It will send a message to a chat you are in every 5, 10, 20, 30, 40, 50, or 60 minutes (you get to pick the time)I would like it to add up the total time they are gone (in minutes)so if they are gone for 2 hours and they choose 30 it will add up in a label saying "60". and when you stop it, it will send a message saying "Back from idle gone for "time" minutes.And if I can, Can I convert the minutes into like instead of "gone for 60 minutes" it would be "gone for 1 hour" (if not that's fine, that is just and extra I would like)
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Sep 2, 2009
The code below finds a string from a text file and, if the correct month, - Monthcheck1, adds it as an item to an unsorted ListBox. I want to run through the text file again to find data for the next month. If I repeat this code for MonthCheck2, nothing is added. My question is: What is the convention for looping through the same file a second or third time?
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Mar 30, 2010
are ghosted on my network they fail to update via Wsus because of duplicated GUID in the reg.If you remove the reg keys then a new one is created and the problem is resolvedMy problem is this.If the computer is switched on it takes a mili second to give me the registry data, if it is not turned on it takes 30 secs to time out!Can I limit the time VB looks for a computer to 1 sec?Here is my code so far, It works fine I just need to get rid of the delay when it cant find a computer
Try
Dim MyReg As Microsoft.Win32.RegistryKey = Microsoft.Win32.RegistryKey.OpenRemoteBaseKey(Microsoft.Win32.RegistryHive.LocalMachine,
[code].....
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Dec 20, 2009
I developped a small application with two date time pickers and a button user controls and it exports datatables to excel sheets. its working perfect on my pc using windows vista and office 07. but when i tested it on another machine using windows 2000 and office2000 i got the following error:
failed to activate control vb user controle. this control maybe incompatiblewith your application. make sure you are using the version of control that was provided with your application.
and for excel 2000. is it possible to get MIcrosoft Excel 9.0 object library downloaded and added as reference to vb
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