| 摘要 |
Embodiments of the present invention disclose a method, an apparatus, and a system for transferring a file to a user of an instant message system, where the method includes: receiving a file sent by a user of a first instant message system to a user of a second instant message system; sending a file transfer notification message to the user of the second instant message system by using an instant message agent server; and sending the file to the user of the second instant message system according to a response of the user of the second instant message system based on the file transfer notification message. In the method, an ND is set at an instant message agent server side, the ND temporarily stores a file sent by a sender to a receiver, and then the instant message agent server sends a URL of the file to the client of the receiver. In this manner, a user of a different IM system acquires the file by using the URL of the file, thereby achieving the objective of transferring the file to a user of a different IM system.
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