Licence Key - Registry Settings

[pulsedav]

Hi,
I have created a vb.net application, which requires a licence key to be entered in order to activate all the features. How do you read/write to the registry, so that each time the application is run, you don't need to keep entering the licence key.

Thanks,

 

[kulrom]

Licence key? Can you be more specific please?
Maybe you are talking about CR licencing? Waiting for your feedback !!!

Cheers

 

[LHandy]

When the user enters their key check to see if it's good and if so do this:

Dim reg As RegistryKey = Registry.CurrentUser.CreateSubKey("Software\ProgramNameHere")

reg.SetValue("licensekey", txtLicense.Text)

On program startup, do this and then check to make sure the code from the registry is valid:

Dim reg As RegistryKey = Registry.CurrentUser.CreateSubKey("Software\ProgramNameHere")
Dim license As String
license = reg.GetValue("licensekey")

Tip: You may want to encode/encrypt the key before putting it into the registry and don't necessarily name the key "licensekey". That way nobody will know where the key is saved unless they use a registry monitor. Basically, don't make it TOO easy.