Delegate is a great way to implement Callback operation. But, interface is good for the implementation of Callback in different scenario which I have mentioned above. Please read carefully and understand the code snippets. I have also attached code files. Writing code is good but code with proper design approach increases the quality of code.
Windows Vista and Windows 7 make use of a c:\windows\winsxs folder to store backups of various install files and/or files replaced by updates. I'm not completely certain on everything Windows stores there.This seems to be completely separate from System Restore.he WinSxS\Backup folder: In previous versions of Windows, such as XP there was a component called 'Windows File Protection' which was used to make sure that all of the many system files were protected and backed up. These files were backed up in the %systemroot%\System32\dllcache folder.
An .htaccess file is a configuration file which provides the ability to specify configuration settings for a specific directory in a website.The .htaccess file can include one or more configuration settings which apply only for the directory in which the .htaccess file has been placed.n the next example, the .htaccess file is included in the wordpress-website directory which controls who can access the wordpress-site directory. For instance, someone that has access to the htdocs directory might not be able to access the wordpress-site directory due to authentication restrictions.