I am wondering how to make a product key as a license key for my VB.Net windows form application? Because at the end of the day, i would have to package it as a exe file and i would like to include in a license key for the user.
And also may i know how to package the whole project as a exe file such that after the user excute the installer, everything will run. like how you install windows xp like that.
how to get vb6 license nowadays?does the visual studio pro 2010have a downgrade path to vb6?
View 8 RepliesI'm an old programmer who knows VB6. I want to write an application and distribute it to a friend. I have not enough time to learn now Visual Basic Express 2010. What can I do ? How may I obtain a license for this ?
View 3 RepliesI recently purchased Visual Studio 2010 and am wondering if it is possible to use the VS2010 license as a substitute for VB6 license.
View 2 RepliesRight 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.
View 6 RepliesI 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.
I am trying to make a product key registrar for my program. I want the product keys in a database or a dictionary type thing where I can make new keys everyday without putting them into the program, and redistrubate them everytime.
View 5 Repliesim trying to make something to protect my application a simple serial key the only thing i can think of is if textbox1.text = ("key") then blah blah blah you get it. what i really want is something that will allow me to add and remove keys without having to mod the application, something that would check a site like
View 22 RepliesI 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.
View 2 RepliesI am trying to make a form that you can enter a serial (to validate the product) this is my code :
Private Sub TextBox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.TextChanged
Dim T1 As String = TextBox1.Text
Dim T2 As String = TextBox2.Text
Dim T3 As String = TextBox3.Text
[CODE]...
The problem is when i first open my application and i enter my code it goes red, but when i re-enter the code in textbox 1 it works fine, how can i make it work without re-typing?
Just looking at various ways to do so.I came accross an article which unfortunatly I can't find anymore. It explained it like this. (I'll try remember all of it)1) Put activation key in textbox12) Press button3) Checks with the FTP server if the title of a file (In the this case the license key) in the FTP server.4) If the file doesnt exist then a message box comes up incorrect license.4b) I the file does exist then my.settings.activate = 15) Next time its loaded up, the program checks if my.settings.activate = 15b) If not then an activation key must be put in and proccess starts again.
View 6 RepliesMy vb.net browser will be the first application I'm actually pushing out to the public.Everything else so far was for me and friends or some type of class. My problem is I don't know what license to pick to release it under. It's going to be partially open source and partially not.Whats included that i didn't write or make
GeckoFx - web browser plugin like ie but based off firefox
App Life Update - http:www.kineticju...te/Default.aspx ( I have the free limited license)
Sqlite - used for bookmarks
Other than those to plugins/dll files everything else i wrote myself or followed tutorials on and modified to fit my applications need.
We plan on selling an application that I've made and we want to be able to force the user to buy a 1-year license for it. And of course after that 1-year we want the program to stop working and force the user to purchase another license.
I've seen many things in VB.NET with certificates/licensing but I'm just not familiar with them to be able to take it any further. And right now I don't have the labor to spend hours messing around with it.
I have a problem with my application. I have got it to the point of running the AVG installer, but it fails because a licence key is needed. I have the licence key, but the idea is that my application makes it easy for the user by them just needing to click through.
Is there a way to automatically input the licence key into the licence key field on AVG's set-up from my application? [code]...
I have completed a vb.net project and now i need to set 30 day trial period for the software. what are ideas behind generation of license keys. How it is formed. How we can develop our own license keys without third party softwares for creating license keys.
View 3 RepliesI have built an excellent licensing key system which works well on desktop pc's. Basically I run an algorythm on the Hard Disk Serial Number and the Customer Name. While this is not totally brilliant, it seems to work really well (on desktop machines or machines with real hard disks). Now that we come to Tablet PC's, I have found that the Serial Number of the "DISK" which is normallyan SSD is the same from one machine to the next - so all unlock codes end up the same. How about making a unique code for each machine I install my application on?
View 1 RepliesWhat is the best and most secure way to license software? Is there an existing program for doing so? I want to sell a script of mine, but I want to make sure that users cannot redistribute or sell it themselves (of course, if they deactivate the registration on their own computer and choose to resell, that is their choice).
The software language is VB.net.
Since I am not sure whether or not I could host a registration database of any sort, is there any way to keep licensing self-contained securely? I would like the user to be able to download the demo and be able to upgrade to the full version somehow.
I have an application that will be sold to a verticle market. Our techs will do the install, and the software requires hardware for it to work. But I still need to create something so that each customer has a key to use the software. So what is the best way to approach this. I don't high security, because the softare won't do a customer any good without hardware. But it's required in the bids that we do. I also have diffrent options for the software. Not everybody wan't all the bells and whistles, just the basic pakage.I was thinking maybe using a dongel for hardware key? But that more cost.Your thoughts?
View 5 RepliesHow can I protect my dll with a license key, I already have my licensing scheme but I don't know where to put it.
View 8 RepliesThe issue, is that I'm developing an app that won't be installed and will be used on a bunch of different PCs. The app is free, but uses some 3rd party tools and code, so the user must be aware of the licensing agreement for those tools.
Since it will be used on a bunch of PCs, I don't want the end user to have to accept this license agreement a million times.
Is there any way I accomplish this with a local resource of some sort?I was thinking I could add a license file that should be moved around with the executable, and that could contain a license agreement code, then i could prevent the app from being used without that file.
After countless hours of production, I've finally got a working product that I'd like to market. However, I obviously don't want this product stolen and torrented. So, how exactly would I add license support to my program? I'd like to make the license paired with a number that's unique to the compute
View 13 RepliesI want to create a license key function for my application.
For example I want in this key to contact 2 values: registered_to, expiry_date.
I want the licence key to be some sort of large string like: 2349ASDGKLASD87ASDGALSDK8ASD80972K.
I would need to create some way to create keys use some sort of algorhithm that decrypts the key and grabs the registered_to and expiry_date values. It also needs to check that the key string has some sort of check digit like credit cards have, so no-one can just type in a few random letters/numbers and it accepts.
When a user activates my program, a license file is emailed to them as an attachment. Some people are having trouble saving/downloading email attachments so would it be possible for the program to download the license file during activation into the installation directory?
During activation my program connects to my website and checks the user is registered and if so a license file is created online and emailed to the user[code]...
I am trying to complete a driver license exam in vb that includes a module and two forms.It says that I have to have 2 arrays to compare(correct answers and user input) in order to see if the user passed or failed. User must have >15 correct to pass.I am so confused on the arrays part and need help to get this application to work. Can someone please help me with the correct counter accumulator and comparison of the arrays? I am also supposed to declare the correct answers in the module and I have tried everything, but I keep getting errors. [code]
View 12 RepliesI plan to use iTextSharp 4.04.0 for my program for creating pdf on the fly.My find out that iTextSharp 4.04.0 is release under license GNU Lesser General Public License (LGPL).I have searched online but can't really undestand what GNU Lesser General Public License (LGPL) is.My question is does the dll which released under GNU Lesser General Public License (LGPL) is free to use? Free to use by the company?
View 1 RepliesI am creating a built for a vb.net application and i want to include the user license agreement into the built, which allow to click either "Agree" or "Disagree".
View 1 RepliesWhen trying to edit an exisiting or trying to create a new dialog with a MSFlexGrid I get the following error
The ActiveX control "Microsoft FlexGrid Control, version 6.0" could not be instantiated because it requires a design-time license.
Any one know how to get a "design-time license" for the MSFlexGrid control.
Public Function Crypt(ByVal Str As String, ByVal Password As String) As String
Dim SK As Long, K As Long
Rnd(-1)
Randomize(Len(Password))
[code]....
suppose i have created new custom control by using visual basic project of type "WindowsControlLibrary" version 2005 the control i have designed consists of a single user control called usercontrol1 however, i would like to protect this control by license file to reduce using of this control to those how have a license only,
thank you1) The failure is first step to success 2) Organizing your time shall organize your life
I need to Encrypt my license info and put in the Sqlserver, while user login I need to decrypt the license info and need to check the license. Is there any strong Encryption is available in .net framework 4?
View 1 Replies