SoftwareKey has been an important part of our business in terms of securing our intellectual property with their software protection and allowing us to implement a pay as you use business model which is a first in our industry.

How do I install the full version of the software? After you have purchased the product, you will receive an e-mail, containing one of the following: • a 25 digit license key OR • full version download links and installation password If you received a 25 digit license key If you received a 25 digit license key (e.g.

5-5-12345), you can easily activate full version by entering your license key in the trial version of the application. Simply launch the application, click Activate and enter your key. If you received download links and installation password If you received full version download links and installation password, it means that trial version of this product can not be turned into full version. To install full version of this software, please download the full version setup from the download links provided in your purchase info e-mail (and not from the website). Launch the downloaded setup program and follow on-screen instructions. Your installation password will be asked for during the setup process.

If you have lost your key or your product info If you have lost the e-mail containing your purchase information, please for instructions on getting a replacement.

• Introduction In this simple article, I am going to show how you can protect your software from unauthorized copying by creating a serial number/activation key pair based on the physical address (MAC) of the network adapter on the client's machine. Getting the MAC Address and Generating the Serial Number The first step is to get the MAC address of the client's machine. This could be achieved by using the ManagementClass class located in the System.Management assembly.

We have to add a reference to that assembly to our project, and import it into SecurityManager.vb, which will be the class in which we place the GetSerial() and CheckKey() functions. These two functions will be responsible for generating the serial number from the MAC address and checking whether the key entered by the user is valid. As a first step, we define the GetSerial() function as follows: Public Function GetSerial() As Long Dim mc As New ManagementClass('Win32_NetworkAdapterConfiguration') Dim mac As String = ' ' Getting network adapters collection Dim moc As ManagementObjectCollection = mc.GetInstances ' Here we iterate over available network adapters, ' picking the first possible one For Each mo As ManagementObject In moc If mo.Item('IPEnabled') Then mac = mo.Item('MacAddress').ToString Exit For End If Next mc.Dispose() ' This is a simple function that we use to get a serial out ' of our MAC address.

Say that x is the MAC and y is the serial, ' the function would be y += x[i] + (i * 2) where i is the index ' of MAC address element. JimSharples 18-Oct-12 22:52 18-Oct-12 22:52 ManagementClass in the SecurityManager Class GetSerial() Function does not appear to work under.Net 4. I substituted the following: Imports System.Net.NetworkInformation Public Function GetSerial() As Long Dim mac As String = ' ' Dim nics As NetworkInterface() = NetworkInterface.GetAllNetworkInterfaces() If nics Is Nothing OrElse nics.Length 0 Then Exit For Next End If ' In case we get no valid adapter (unlikely), then If Len(mac) = 0 Then mac = ' 6CF0490FC2F6'. Continue with GetSerial function. This is the whole alternative function. The way I use it is to check for a file (called 'Z1' or anything you choose) in the application folder when my application starts. If it does not exist, the program has been run for the first time, and I notify the user that they have 10 (or whatever) times left to run the program.

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