Make A Trial Period Application In VB 2010?Oct 23, 2011
how can i make a trial period application in visual basic 2010
how can i make a trial period application in visual basic 2010
I have just completed a custom banking & accounting software application for a stingy client who doesnt wants to pay-up! How do i make the application a trail version that will expire in say 30 days, and also ensure that whenever it is installed, it checks for first installation and indicate remaining trial days.View 2 Replies View Related
How do programs like antivirus keep track of time passed for the trial period? Eg I want to make a program that expires and stop working in 30 days One way I thought of is to make use of the system time.View 6 Replies View Related
I have looked through couple of threads about making the trial application to be expired within certain time. Most of the advice is to set a timer and store it in somewhere in the system with encrytion. Then later decrypt and compare with the date installed in the system.View 12 Replies View Related
do a project in vb.net.and i want to do demo(TRÄ°AL VERSION).
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Dim free As Integer = Microsoft.Win32.Registry.CurrentUser.CreateSubKey("demo").GetValue("time", 5) Label1.Text = free& " stay days " hak -= 1 If hak < 0 Then MsgBox("THE END please buy this programm") Me.Close() Else Microsoft.Win32.Registry.CurrentUser.CreateSubKey("demo").SetValue("time", free) End If End Sub
this codes are not daily. i don't want this codes.
I need to know how can I make trial(demo) version of my program. Normally people use date & time to do it. But if user will change his system date I guess it will not work. I need to know the best way of making trial version which will work only 7 or 15 or 30 days. Is it possible to make something like that it(program) will kill all files after passing 30 daysView 3 Replies View Related
How to make a trial versin software in vb.net 2005 for expiration of software after a certain days?View 1 Replies View Related
I have made an application in vb.net of which I want to make a trial version. It should stop working after a week. Is the ClickOnce manifests used for that? Any best approach for this. Preferably a process that does NOT use system date.View 5 Replies View Related
am using visual studio 2005 professional edition (vb.net) at front end of my project, my project is completed, i have created the simple setup file, but i want to create its trail version too, i mean a full fledge setup, so how do i made it in vb.net?View 16 Replies View Related
I want to make a trial or demo for my program , how i can do that ??View 1 Replies View Related
I created an application in vb.net using visual studio 2010. I want to create an installation file of the application that will not be free with a license so I want to create a trial of 30 jours.View 2 Replies View Related
Ive created a trial application , but how do i stop that application from running again on the same ip address? Just so the user cant re-install it and use it again.View 15 Replies View Related
I am a student developer & working on a project. I am using visual studio 2005 professional. My preferred language is visual basic. I want to know how to make the trial software which expires after some use unless right key is entered and also the procedure for making the registration key enabled software.View 2 Replies View Related
I have seen a similar thread. But it is not answered. The Auto uninstall tool link given in that answer is not working. I want to uninstall .Net Pro Trial and going to install express edition. can anyone please tell me the order of programs to be removed?. Or please give the link for Auto uninstall tool for .Net Pro 2010.
Note: I have some software which are based on .Net Framework. so I should not remove the Framework. Is it possible to install Express Edition without removing this Framework?.
How offer a trial version of a application on visual basic ? I looking for something the user can't not uninstall and reinstall the trial and start again the trial period, so when the trial period finish the can not use the application anymore.View 2 Replies View Related
How I can stop my application if not use it for a period of time ?View 1 Replies View Related
is it possible to have a delay period of 17nS for an application in vb.net???View 7 Replies View Related
I am writing an application that I want to give to a select number of customers.
What is the best solution to use so that after the trail period (1 month) the application will no longer work.
I was thinking that if they are interested in purchasing the software I will give them a license key or something, to unlock the application. However, I would like to make this unique to every computer.
I am have a very limited budget as I am working on my own. So is there any free 3rd party products that does this?
I was thinking of writing the date the application was installed in the system registry, and each time the application loads it will check if this date is over one month. However, the user could turn back the date on their computer.
Another, solution I was to have the application run some many times. For example, the user can only run 30 times. Then it will lock.
I caused the VB.NET2008 IDE to do something extremely odd and unintentional with some code I was writing. As some of you know, I mostly write programs for industrial equipment. On one of our products, I needed to make certain forms automatically close after a timeout period. To do this, I began programming a usercontrol with a Timer on it (interval = 1000) and a ProgressBar. Timer.Enabled was set to the Enabled event so I could toggle it. When the control counted to it's timeout period, it would call Me.ParentForm.Close
So I build my project, and drop it on a form in the IDE and I see it begins counting! Huh... I had no idea timers were active in the IDE. I wonder what happens when it hit's it's trigger? I figure probably nothing since Me.ParentForm was actually the designer. When it triggered, the whole IDE crashes without save. I tried it twice now. Here's my
I'm making a financial application, I need the application to close if the user did not do anything for a cretin period of time.View 9 Replies View Related
If we made programs in Visual Basic Express 2010 Trial are we allowed to keep the programs and distribute them freely on our sites and if we unistalled visual Basic can we keep the programs etc...View 2 Replies View Related
ive been wanting to put some kind of self destructing code in my application that deletes itself after a given period of time. (like 2 weeks)View 3 Replies View Related
how can i make an auto capitalized text after typing a period and two spaces in richtextbox?View 1 Replies View Related
Out of curiosity, is there a way i can make a program stop or pause for a period of time (which i would choose) before continuing the code WITHOUT a timer.I think I've seen this done before, but I'm not positive.Also note that I'm talking about a forms application (not a console app if that would be any different.)View 3 Replies View Related
If a billing period always starts on say the 22nd of the month and ends on the 21st of the following month then all I'd have to really figure out is how many days are in the month the billing period started right? I hate working with Dates! This is what I've come up with using the idea above...Note, Dates are strings in the first column of a Listview in the format of, mm/dd/yyyy.
' get month from start of billing period (last item in LV) ' example of dates: 06/22/2011
Dim BillStartMonth = CInt(ListView1.Items(ListView1.Items.Count - 1).Text.Substring(0, 2))
' get Year from start of billing period (last item in LV)
How Do I Make Button.click Event Perform both the enter and period(del) keys on the numeric keypad? [Code] Case Keys.Enter and Case Keys.Separator do not work. Nor does anything like Keys.OEMPeriod for the period(del) key. I've also tried calling the enter key in a KeyPress event etc. But to no avail. Any ideas? I'm trying to mimic Windows calc.exe for a school project and thought I'd try throwing in a few extras such as numeric keypad functionality.View 1 Replies View Related
Once again I'm migrating to vb.net finally from vb6 and trying to get some of my old code to work. I was using the following code to let something finish running and then after the time set go to the next.
Sleep just stops the code period but this actually runs the piece before it and then continues. I put it all into vb.net and it threw out an error with DoEvents.
I am making trial version of my vb .net project but it is not counting the days , date and time . Can u plz give me any suggestions to make it correct. [code]...View 1 Replies View Related
I would like to find out how I can make a complete copy of an existing project.The purpose of this is not for backup but rather to be able to resue some of what I already designed/coded in VB and turn it into a new or different application.View 5 Replies View Related
I am trying to learn and make a small application to print from VB.net 2010 to my usb label printer.View 3 Replies View Related
Visual Basic 2010. For a school assignment i had to make a application with XAML in it. I made the tutorial Math Quiz when starting up Visual Basic 2010. This was a Windows Form application that only needed VB programming language. Now i made the Math Quiz and finished it but there is no XAML included or what so ever. Can I still convert this to XAML or just see any XAML language somewhere. Cause I need to proove to my Teacher the application I made includes XAML.View 1 Replies View Related
I want to make a login for my application, not using a database, for now.
I figured something like this:
Private Sub OK_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OK.Click
If UsernameTextBox.Text = "Josh" & PasswordTextBox.Text = "mypass1" Then
I need program so it saves and saves to a .txt file and so that it can save up to a maximum of 20 times
Public Class Form2
Dim num1 As Integer
Dim num2 As Integer
im making some stuff using VB 2010 recently (im new to VB 2010) and well...i wanna make it into an executable file, how do i do it?View 1 Replies View Related
I want to make a vb application that downloads stuff off of the internet such as pictures, etc. Does anyone know how I can do this? P.S. If anyone knows how I can implement a progress bar into this .View 3 Replies View Related
I'm a noobie coming from VBA. i thought i'd try my hand in VB (because this stuff is fun). I'm trying to make the main window for an application. i've created 2 forms so far. one entitled "Main" and the other "Form1". I would like for "Main" to be the main window of the application.View 2 Replies View Related
I am trying to make a VB application that can read and write at excel or at SQlite db.With the excel my application works fine, but when i tried to share my application 1 of my friends can open it and all the others no.So i want to try with the SQlite but i dont know what i need for to support the sqlite at my VB project.I am using VB 2010 but i can also i can use C#?View 8 Replies View Related
I am trying to make an application which will list all processes in a string when it starts. After it has listed them all I enable my timer, and in the timer there gets checked if the process is in the process list (string), and if it isn't it will add it to my listbox. The only problem is, it's not working, it's never adding an item.
Public Class Form1 Dim AllProcesses As String Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load 'The first check For Each p In System.Diagnostics.Process.GetProcesses() If AllProcesses = "" Then AllProcesses = p.ProcessName Else AllProcesses += "|" + p.ProcessName End
I want to do trial version of software in vb.net. can you tell how to do itView 1 Replies View Related
I was thinking to make an app to save images [or download images] to local hard disk. But to keep it easy, I want this app to create a small picturebox on form to show the thumbnail of downloaded image. Lets say a 5 pictureboxes has to be added with the thumbnails to show the recent downloads. A user can save the location where he wants to save the files on hard disk. A listbox or a dropdown menu will help in categorizing the images, like image1 in friends section, image2 in family section, image3 in others, etc... When the program restarts all the latest 5 thumbnails has to be loaded in pictureboxes and the directory that was chosen. Finally, a button that shows the downloaded images into original image file size one by one or a slide show. Is it possible to make such program?View 2 Replies View Related
I have searched lots of way to make a 30 day trial limit of my program. They say "Use -Settings- in visual basic application for your variables" to save the information about user (like : registered or not registered or when the program expire). (You can see the 'Settings' when you double-click on "my project" in "solution explorer") Does the data which we use with "settings" saved in our program or somewhere in the computer?View 5 Replies View Related
how can i add a trial with random serials or single serial and once it get registered expire it after 6-12 months....and also if user change its clock time to some day back it remains expire.....View 1 Replies View Related
i want my software have trial like 30 days or 60 day ... ?View 6 Replies View Related
i develop a project in visual basic 2010 can there is any way to limit this project for trial versionView 2 Replies View Related
Just today I've completed a trial version of my application - I then uploaded it to my webserver, and to my surprise a user already (almost one hour after I uploaded it) bypassed the protection and used the software 8 times (instead of the limit of 1 use)!
My "protection" was pretty weak. After the program has been used, it just writes a value to a single registry key. The user just deletes this registry key and can use the program once more, and so if someone does this enough times, he can use the software for as much time as needed.
Anyway, since I'm not really experienced in programming, do you guys have some nice working and possible easy to implement trial protection? I'm not looking for anything too serious, but it shouldn't be as easy to bypass as my current protection.