TAILIEUCHUNG - Programming Visual Basic 2008 phần 9

Thích hợp. NET nội dung cấp giấy phép có thể có nghĩa là sự khác biệt giữa sự thống trị thị trường và phá sản tài chính. Và tôi chỉ nói về cố gắng để hiểu được những thỏa thuận cấp phép mà đi kèm với Visual Studio. Bạn vẫn phải tìm ra một phương pháp cấp giấy phép cho các ứng dụng của riêng bạn trước | CHAPTER 22 Licensing Your Application Proper .NET content licensing can mean the difference between marketplace dominance and financial bankruptcy. And I m just talking about trying to understand the license agreement that comes with Visual Studio. You still have to figure out a licensing method for your own application before you send it to your customers. Licensing and license agreements are an essential means of protecting the intellectual property you ve worked so hard to develop. How does licensing work The key is found in the roots of the word itself license comes from li- to tell a lie and -cense from cents as in pennies . Together these roots mean to tell lies about small units of currency. The confusion brought about in trying to figure out what this means keeps the bad guys perplexed and occupied long enough so that they don t steal your application. If this method doesn t work there are software solutions some of which I ll review in this chapter. Part of the discussion focuses on designing a licensing system that will appear in the Library Project. The .NET Framework does include classes for component licensing but they are primarily used for designers of controls used by other programmers within the Visual Studio IDE and not for end-user applications. We will not be covering these licensing features in this chapter. If you re curious about such features start by reading about the License Compiler in the Visual Studio online help. Software Licensing Options Back in the early days of software licensing wasn t an issue if you could get to the computer it was because you were authorized. All user interaction with the system was through the programmers and technicians. If some user wanted to steal something it would be in the form of 20 tons of steel wires and vacuum tubes. Fun Yes. Easy No. 611 Today it s a different story. Most users are non-technical and some are unethical. So now we have licensing agreements and teams of lawyers to back it all .

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