Best/cheapest Product Registration Service?
May 17, 2010
I'm looking to release an application for free with (unubtrusive) ad support, and the option to upgrade to a registered version to remove the ads. Basically we want to give the product away for free, but need some income to support costs.
What would be the best way to achieve that? I essentially just want the user to be able to type in a serial number, which is sent to a server, checked and presumably moved to a list of used serials, and then the product is activated and the ads removed.
What is the best/cheapest service to do that?
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Oct 5, 2010
I am looking for a free utility or way to protect my software by requiring a Product ID (Which will be created when a customer requests a paid license) to use the application after a demo version. Like most shareware apps.
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Jan 15, 2012
I have an application and an sql server.i would like to add Registration Code for the system.that should include the number of user
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Jun 2, 2011
I want to create a log in and registration form in VB connecting to a sql database.
Databse Name: Users
Table Name: UserDetails
Table Fields: ID, Username, Password
The ID field was specifed as primary and self incrementing by 1 and the table has one username and password (being Id: 1, Username: peter, Password: admin). The Login form works, it checks to see if the user exists, if they do, they gain access, if not a message box is displayed. The Registration form however does not and I have no idea why, its probably something simple but yeah, hence the reason Im here! When I register I can add a user fine, and it wont allow me to add the same user, but when I look at the table, it is not updated :S and I have no idea why!! Even after registering the user closing the application and starting again, say I registered the following:
Username: Fred
Password: 123
Then I login with these credentials, it works. When I close the program and reopen the program, it still works and will not allow me to register a new user being Fred, 123. However after 3 or 4 minutes when I try again, the user no longer exisits and I can re-register with set credentials? The code is shown below (1st the login form that works, second the registration that doesnt).
Public Class Login
Private Sub btnOK_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnOK.Click
Dim connection As New SqlClient.SqlConnection("Data Source=.SQLEXPRESS;AttachDbFilename=|DataDirectory|Users.mdf;Integrated Security=True;User Instance=True")
[code]....
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Aug 11, 2009
Right now i have a form in the VB where there are 2 combobox in it. user can choose from a range of products that comes together with some description and these are to be stored in a database table.. when i retrieve these data from another form in VB, i'm only able to retrieve the first product and it repeat e same product in my second textbox.
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Jun 25, 2009
I have 2 datagrids. One to show Product information and another for Product purchase details entry. Both share the same dataset. The dataset (ds) is filled up with columns from 2 table
ProductMstrTbl : ProductID, ProductName..
ProductDetailsTbl: ProductID, PurchaseDate, Amt, BalanceQty..
DataSet(ds) : ProductID, ProductName, PurchaseDate, Amt, BalanceQty.
The problem is that: Showing from dataset or entering new records into the dataset is no problem, but am not able to save the modified dataset into DataBase. SqlCommandBuilder failed to generate the corresponding INSERT, UPDATE command as the dataset has multiple base tables.
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Feb 2, 2012
I have an object called offer and it has sub object price as decimal and provider_ID as integer. What I need is I have list (of offer) and I need to get cheapest price for each provider. So lets says I have following:
Provide_ID Price
----------------------
1 30
2 40
1 15
2 20
3 5
3 10
How can I make a linq query (from item in offers group by item.provider_id into
max(item.price)) like this.
Because using group by I am not able to get all information of offer object. beside provider_ID and price I have more information. That's why I don't want to have (with {item.price, item.provider_ID}) etc. selecting each one by one.
And results of filtering should have only
provide_ID Price
----------------------
1 15
2 20
3 5
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Jul 14, 2011
i have a Windows service that is hosting a WCF service through net.tcp and this is working great. I have also created a WCF service application. I am trying to add the net.tcp service reference to the service application. Then I add it to the GAC that goes ok but if I try to RegAsm the WCF service application to allow it to be called from Server.CreateObject I get the error:
Warning: Type library exporter encountered a type that derives from a
generic class and is not marked as
[ClassInterface(ClassInterfaceType.None)]. Class interfaces cannot be
exposed for such types. Consider marking the type with
[ClassInterface(ClassInterfaceType.None)] and exposing an explicit
interface as the default interface to COM using the
ComDefaultInterface attribute.
It does not work. I have tried to call it through a class library but this does not work either as the end point is not set correctly.
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Feb 3, 2010
I have a VB2008 application which can control a windows service i.e. start, stop, pause etc. This runs ok on a Windows XP machine but not on a Win 7 machine (message is - Service error cannot open <service name> service on computer '.') ( if I stop the UAC then it runs ok ). It seems to be a rights issue,
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Apr 15, 2012
How can a pop up for registration and sign up be enabled in vb 2005.when the pop up is visible, rest of the site should be disabled .
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Feb 8, 2012
I cant run my VB 2008 . it need register key
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Jan 18, 2010
What is the product key of Visual Basic .net 2008?
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Jun 8, 2011
I need to code a tool repaire exe file how I can write this reg key
[HKEY_CLASSES_ROOTexefileshell
unascommand]
@=""%1" %*"
[code]....
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Mar 15, 2010
I got this warning that I don't know what it means.Warning1 The service System.ComponentModel.Design.IInheritanceService already exists in the service container.Parameter name: serviceType00
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Mar 22, 2009
I have a product table on datagridview and I would like to add checkbox to each product so that I can mass delete them instead of deleting them one by one.
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Mar 27, 2012
how to get vb6 license nowadays?does the visual studio pro 2010have a downgrade path to vb6?
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Feb 20, 2010
How to put a product key for my Project?
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Jul 12, 2009
i developed a very simple vb.net application and i need a way for every user to verify that they have paid for it. i would like the simplest method possible. it will be an off-line registration. I am actually looking for a way that I can program this easily myself, and am not interested in third part solutions.
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Aug 29, 2009
I just got Visual Basics 2008 Express Edition and I am very addicted to it.I am quite a fast learner. I was able to script together many fun applications that I learn from YouTube. I want to make a registration form look-a-like.I setup the design the way I wanted it and now its the coding part I am having trouble with.I have been on Youtube and this site for some tutorials but I still cant find what I am looking for. I have 4 Text boxes, one being Name, second being Last Name, third being E-mail, and fourth being Username.I also have a OK button that I want them to press when they fill in all text fields. The problem I am having is, say they only fill in the Name & E-mail field and leave the Last Name & Username feild blank when they hit OK I want a error to come up and say Please fill in all information. I have tried these codes and none seemed to work:[code]
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Dec 26, 2010
I am making a program that allows users to share certain files, and it requires anaccount.How do I make a login system? I have my own website, so I have a MySQL thing...Could I link it with that? I have never really worked with account systems so I have no clue on how to add an SQL database and how to use it within the program
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Feb 15, 2011
Okay, this is the final part to my program, making the registration keys...
i have no clue on where to start, i think it starts w/something like this, right?[code]...
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Jan 11, 2010
Although I thought I had registered for the 2008 VB Express, several attempts to run the application resulted in a "stall" at the following address: url...I tried uninstalling and reinstalling the application several times but with the same result.I also installed the latest Vista service pack. This is a problem with my desktop.I have not (yet) experienced the same issue with my laptop.
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Mar 17, 2010
i have a problem when adding username in my registration form..registering same username is allowed in my program..i dont want to allowed this. How can i make it using SQL..if the username exist dialog box will appear that the username exist
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Dec 2, 2009
I am a member of the IT department and also a basic Database designer using Access 2007 and Visual Studio 2005. At the moment when a user calls for support, I log onto there PC using RealVNC, I ask them to tell me there IP address by hovering over there VNC Icon in there system bar. What I would like to do is create a program that runs on my pc, so when they log onto there pc there username and ip is registered in my program, so when they call, i can quickly look up there IP Address for VNC. I know I will have to have some sort of program running in there system tray that passes this information to my program but I am not exactly sure how to go about this.
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Apr 11, 2011
I have recaptcha code and its working fine when i tested it , but what i need is that in my registration form i need this recaptcha and the data should be stored to db if recaptcha challenge is passed and if not then the new challenge should bring up.
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Feb 1, 2011
I like to write an app to autofill a form and submit it. e.g. craiglist, kikiji.
Where should I start first.
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Jul 23, 2009
I am trying to communicate with a Windows service on a remote machine on the network but i keep getting an exception saying the following: "System.InvalidOperationException: Cannot open Service Control Manager on computer 'machine001'. This operation might require other priviledges. ---> System.ComponentModel.Win32Exception: Access is denied.
[Code]...
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Sep 18, 2009
Is it possible to have a dotnet windows service which monitor other services and upon stop of any service, the monitoring service would be able to start the stopped service.
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Apr 28, 2009
This is a bit of unusual problem that I'm experiencing, but recently one of the users of a production application started reporting errors in the system. These were traced to a 503 Service Unavailable error when making a call to a web service used by the application.
Now here's the odd part, only the one user is affected by this issue. Other users of the application have not reported any errors. When the user logged on to a different machine that worked for another user, they still received the error.
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Jul 6, 2011
i was trying to make my service act dynamically... i have set time for my service about for 2 min ,if suppose it was doin huge amount of work means it will exceeds that 2 min time limit then we need to check the service condition if work is pending means we need to run that instance until upto finish.
public static void StartService(string serviceName, int timeoutMilliseconds)
{
ServiceController service = new ServiceController(serviceName);[code]............
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