(The exe file can be encrypted; the user must obtain your authorization to execute the execution. You can create an execution password for the user, and the execution password is bound to the user's computer hardware, and the user cannot transmit the execution password and files; Distributed through U disk; more extended functions can be realized: 1. Online password distribution, users can obtain the performance password through the website you designate after passing the authentication, without manual participation. 2. It is possible to set the file to be valid for a certain period of time, or to expire after a certain point of time, etc.;)
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