Links to local files can be used to subvert restricted access Windows machines which have access to a web browser. Executable program loggers and restrictions are defeated by using .CPLs. Large problems for network administrators could arise if students and employees, whose access was restricted, start to use the links provided on the document. This one can be used for Windows NT as well.
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Many Windows programs (word, excel, wordpad, etc) allow you to break out of a restricted environment, using common sense hacks.
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