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  2. Microsoft Product Activation - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Product_Activation

    The procedure enforces compliance with the program's end-user license agreement by transmitting information about both the product key used to install the program and the user's computer hardware to Microsoft, inhibiting or completely preventing the use of the program until the validity of its license is confirmed.

  3. Microsoft Office 2019 - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Office_2019

    Microsoft Office 2019 was officially released on September 24, 2018, for Microsoft Windows and macOS, following a preview phase earlier that year. Office 2019 was designed for users who preferred a perpetual license model, offering a one-time purchase option, in contrast to the subscription-based Office 365 (now Microsoft 365). While it ...

  4. Software cracking - Wikipedia

    en.wikipedia.org/wiki/Software_cracking

    Software crack illustration. Software cracking (known as "breaking" mostly in the 1980s [1]) is an act of removing copy protection from a software. [2] Copy protection can be removed by applying a specific crack. A crack can mean any tool that enables breaking software protection, a stolen product key, or guessed password. Cracking software ...

  5. Product activation - Wikipedia

    en.wikipedia.org/wiki/Product_activation

    A product key is required to proceed and use Windows 95. In one form, product activation refers to a method invented by Ric Richardson and patented (U.S. patent 5,490,216) by Uniloc where a software application hashes hardware serial numbers and an ID number specific to the product's license (a product key) to

  6. Microsoft Office password protection - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Office_password...

    Using SHA-1 as a hash function, the password is stretched into a 128-bit key 50,000 times before opening the document; as a result, the time required to crack it is vastly increased, similar to PBKDF2, scrypt or other KDFs. [citation needed] Office 2010 employed AES and a 128-bit key, but the number of SHA-1 conversions doubled to 100,000. [4]

  7. Microsoft Office - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Office

    Microsoft Office 1.5 for Mac was released in 1991 and included the updated Excel 3.0, the first application to support Apple's System 7 operating system. [176] Microsoft Office 3.0 for Mac was released in 1992 and included Word 5.0, Excel 4.0, PowerPoint 3.0 and Mail Client. Excel 4.0 was the first application to support new AppleScript. [176]