Method and system for monitoring the use of rented software

• US 5,925,127 A
• Filed: 04/09/1997
• Issued: 07/20/1999
• Est. Priority Date: 04/09/1997
• Status: Expired due to Term

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Corporation
• Inventors: Ahmad, Arshad
• Primary Examiner(s): Palys, Joseph E.
• Application Number:
  US08/831,801
• Time in Patent Office: 832 Days
• Field of Search: 395/182.01, 395/186, 395/188.01, 395/187.01, 380/3, 380/9, 380/23, 380/25, 707/203, 707/9, 707/10, 702/203, 702/9, 702/10
• US Class Current: 726/31
• CPC Class Codes: G06F 21/121 Restricting unauthorised execution of programs
• CPC Class Codes: G06F 2221/2135 Metering
• CPC Class Codes: G06F 2221/2137 Time limited access, e.g. to a computer or data

Abstract

A method and system for monitoring the use of a rented software program module. A rented software program module is downloaded from an Internet site operated by an authorized software rental service provider along with a Check-in/Check-out module and a Software Monitor module. The Check-in/Check-out module provides required licensing information for the rented software program module to the Software Monitor module. The Software Monitor module monitors use of the rented software program module while it is in use by the user. Particularly, the Software Monitor prevents use of the rented software program module after the expiration of the licensed usage time or licensed number of uses. The Software Monitor prevents unauthorized copying of the software program module. The desired software program module may be rented on a pay-per-use basis.

Claims

1. A method for monitoring the use of a computer program, comprising the steps of:

launching a check-in/check-out (CICO) module, said CICO module for providing licensing information for said computer program to a Software Monitor module;

after launching said CICO module, launching said computer program;

launching said Software Monitor module, said Software Monitor module for monitoring use of said computer program;

causing said CICO module to provide said licensing information for said computer program to said Software Monitor module;

in response to said licensing information provided by said CICO module, causing said Software Monitor module to authorize use of said computer program; and

causing said Software Monitor module to delete said CICO module after said Software Monitor module receives said licensing information from said CICO module.

2. The method recited in claim 1, further comprising the step of causing said Software Monitor module to store sad licensing information.

3. The method recited in claim 1, wherein said step of launching said CICO module, comprises securing said CICO module from unauthorized use.

4. The method recited in claim 3, wherein said step of securing said CICO module from unauthorized use, comprises the steps of:

causing said Software Monitor module to generate a unique identification for said CICO module;

causing said Software Monitor module to encode said CICO module with said unique identification;

causing said Software Monitor module to store said unique CICO module identification; and

after a first use of said CICO module, preventing subsequent use of said CICO module by causing said Software Monitor to check whether said unique identification for said CICO module has been previously used.

5. The method recited in claim 4, prior to said step of causing said Software Monitor module to generate a unique identification for said CICO module, further comprising the steps of;

causing said CICO module to send an identification for said computer program to said Software Monitor module;

causing said Software Monitor module to store said identification for said computer program in a database maintained by said Software Monitor module;

causing said Software Monitor module to request a CICO module identification (CID) from said CICO module;

in response to said request, causing said CICO module to send a CID to said Software Monitor module;

in response to receipt of said CID, causing said Software Monitor module to perform a database lookup for a previously stored CID matching said CID received from said CICO module; and

if said Software Monitor module finds a previously stored CID matching said CID received from said CICO module, causing said Software Monitor module to send an invalid message to said CICO module.

6. A computer-readable medium on which is stored a Software Monitor module for monitoring the use of a computer program, said Software Monitor module comprising instructions which, when executed by a computer, perform the steps of:

receiving identification information for said computer program from a check-in/check-out (CICO) module;

verifying said CICO module has not been previously used;

receiving licensing information from said CICO module for said computer program;

verifying license to use said computer program;

issuing an authorization message to said computer program to authorize use of said computer program; and

tracking the use of said computer program.

7. The computer-readable medium recited in claim 6, wherein said step of tracking the use of said computer program comprises preventing unauthorized copying of said computer program.

8. The computer-readable medium recited in claim 6, wherein said step of tracking the use of said computer program comprises preventing use of said computer program after the expiration of a licensed time of use.

9. The computer-readable medium recited in claim 6, wherein said step of tracking the use of said computer program comprises preventing use of said computer program after a licensed number of uses has been expended.

10. A system for monitoring the use of a computer program, comprising:

a Software Monitor module;

a Check-in/Check out (CICO) module operative

to transfer identification information for said computer program to said Software Monitor module, and

to transfer licensing information for said computer program to said Software Monitor module;

said Software Monitor module being operative

to receive said identification information from said CICO module,

to receive said licensing information from said CICO module,

to verify license to use said computer program during a licensed time of use,

to issue an authorization message to said computer program, and

to track the use of said computer program during said licensed time of use.

11. The system recited in claim 10, wherein said Software Monitor module is further operative

to determine whether said CICO module previously has been used, and

to delete said CICO module after receiving said licensing information from said CICO module.

12. The system recited in claim 10, wherein said Software Monitor module is further operative

to prevent said computer program from running longer than said licensed time of use, and

to prevent unauthorized copying of said computer program.

13. A method for monitoring the use of a computer program rented via the Internet, comprising the steps of:

registering said computer program on a software registry, said software registry located on a remote server;

downloading said computer program from said remote server to a local computing device via the Internet;

downloading a check-in/check-out (CICO) module from said remote server to said local computing device via said Internet;

downloading a Software Monitor module from said remote server to said local computing device via said Internet;

causing said Software Monitor module to receive identification information for said computer program from said CICO module;

causing said Software Monitor module to verify said CICO module has not been previously used;

causing said Software Monitor module to receive licensing information from said CICO module for said computer program;

causing said Software Monitor module to verify license to use said computer program during a licensed time of use;

causing said Software Monitor module to issue an authorization message to said computer program to authorize use of said computer program; and

causing said Software Monitor module to track the use of said computer program during said licensed time of use.

14. A method for monitoring the licensed use of a computer program, comprising the steps of:

receiving licensing information for said computer program from a check-in/check-out (CICO) module;

in response to said licensing information, causing a Software Monitor module to verify said licensed use of said computer program;

causing said Software Monitor module to issue an authorization message to said computer program to authorize use of said computer program;

causing said Software Monitor module to delete said CICO module to prevent subsequent use of said CICO module; and

causing said Software Monitor module to track the use of said computer program during said licensed use of said computer program.

15. The method recited in claim 14, further comprising the step of causing said Software Monitor module to send a termination message to said computer program to terminate use of said computer program.

16. The method recited in claim 15, further comprising the step of terminating the use of said computer program after the elapse of said licensed use.

17. The method recited in claim 14, wherein said step of causing a Software Monitor module to verify said licensed use of said computer program comprises the steps of:

causing said computer program to determine whether said Software Monitor module is active;

if said computer program determines said Software Monitor module is active, causing said computer program to send identification information about said computer program to said Software Monitor module; and

in response to receipt of said identification information about said computer program, causig sad Software Monitor module to determine whether said computer program is licensed for use.

18. The method recited in claim 17, wherein said step of causing said computer program to determine whether said Software Monitor module is active, further comprises:

if said computer program determines said Software Monitor module is not active, causing said computer program to issue an error message to indicate an error condition.

19. The method recited in claim 17, wherein said step of causing said Software Monitor module to determine whether said computer program is licensed for use, comprises:

causing said Software Monitor module to compare said identification information about said computer program sent by said computer program with identification information about said computer program maintained by said Software Monitor module; and

in response to said comparison, causing said Software Monitor module to determine whether said identification information about said computer program sent by said computer program matches said identification information about said computer program maintained by said Software Monitor module.

20. The method recited in claim 14, wherein said step of causing said Software Monitor module to track the use of said computer program during said licensed use of said computer program comprises the steps of:

causing said Software Monitor module to start a timer to record an elapsed time of use of said computer program;

querying said Software Monitor module as to whether a licensed time of use has expired; and

in response to said query, causing said Software Monitor module to determine whether said licensed time of use has expired.

21. The method recited in claim 20, wherein said step of causing said Software Monitor module to determine whether said licensed time of use has expired, comprises the steps of:

reading said elapsed time of use recorded by said timer; and

comparing said elapsed time of use with said licensed time of use.

22. The method recited in claim 14, wherein said step of causing said Software Monitor module to track the use of said computer program during said licensed use of said computer program comprises the steps of:

causing said Software Monitor module to start a counter to record a total number of uses of said computer program;

querying said Software Monitor module as to whether a licensed number of uses has been expended; and

in response to said query, causing said Software Monitor module to determine whether said licensed number of uses has been expended.

23. The method recited in claim 22, wherein said step of causing said Software Monitor module to determine whether said licensed number of uses has been expended, comprises the steps of:

reading said total number of uses recorded by said counter; and

comparing said total number of uses with said licensed number of uses.

24. The method recited in claim 14, wherein said step of causing said Software Monitor module to track the use of said computer program during said licensed use of said computer program comprises the step of preventing unauthorized copying of said computer program.