System for preventing unauthorized copying of active software

• US 5,870,543 A
• Filed: 03/11/1997
• Issued: 02/09/1999
• Est. Priority Date: 06/07/1995
• Status: Expired due to Term

• Current Assignee: Digital River Incorporated (Danube Private Holdings II, LLC)
• Original Assignee: Digital River Incorporated (Danube Private Holdings II, LLC)
• Inventors: Ronning, Joel A.
• Primary Examiner(s): PALYS, JOSEPH E
• Application Number:
  US08/814,832
• Time in Patent Office: 700 Days
• Field of Search: 395/186, 395/188.01, 395/187.01, 395/183.14, 395/183.15, 395/340, 395/341, 395/343, 395/344, 395/561, 380/3, 380/4, 707/9
• US Class Current: 726/33
• CPC Class Codes: G06F 21/1063 Personalisation
• CPC Class Codes: G06F 21/53 by executing in a restricted environment, e.g. sandbox or secure virtual machine
• CPC Class Codes: G06F 2211/007 Encryption, En-/decode, En-/decipher, En-/decypher, Scramble, (De-)compress
• CPC Class Codes: G06F 2221/2101 Auditing as a secondary aspect
• CPC Class Codes: G06F 2221/2137 Time limited access, e.g. to a computer or data
• CPC Class Codes: Y10S 707/99939 Privileged access

Abstract

A computer-based system is provided for preventing unauthorized duplication of a particular software program among a plurality of active software programs executed on a computer. The system receives an indication that the computer is executing the particular software program, and then monitors operation of the computer to determine which of the plurality of the active software programs is being currently executed. When the system determines through the monitoring that the particular software program is not the currently executed software program, it disables execution of the particular software program.

Claims

1. A system for preventing unauthorized duplication of a particular software program among a plurality of active software programs executed on a computer, comprising:

receive means for receiving an indication that the particular software program is one of the plurality of active software programs on the computer;

monitoring means for monitoring operation of the computer to determine which of the plurality of the active software programs is being currently executed; and

disable means for disabling execution of the particular software program when the monitoring means determines that the particular software program is not the currently executed software program.

2. The system of claim 1 wherein the monitoring means comprises means for monitoring the operation of the computer within a multi-tasking environment which includes a distinct visual indicator for each of the active software programs.

3. The system of claim 2 wherein the monitoring means further comprises means for identifying a front-most indicator among the plurality of active software programs.

4. The system of claim 1 wherein the disable means comprises means for disabling an image driver corresponding to the particular software program.

5. A computerized method for preventing unauthorized duplication of a particular software program among a plurality of active software programs executed on a computer, comprising the steps executed by a computer of:

receiving an indication that the particular software program is one of the plurality of active software programs on the computer;

monitoring operation of the computer to determine which of the plurality of the active software programs is being currently executed; and

disabling execution of the particular software program when the monitoring means determines that the particular software program is not the currently executed software program.

6. The method of claim 5 wherein the monitoring step comprises the step of monitoring the operation of the computer within a multi-tasking environment which includes a distinct visual indicator for each of the active software programs.

7. The method of claim 6 wherein the monitoring step further comprises the step executed by the computer of identifying a front-most indicator among the plurality of active software programs.

8. The method of claim 5 wherein the disabling step comprises the step of disabling an image driver corresponding to the particular software program.

9. A computer program product, comprising:

a computer usable medium having computer readable program code means embodied therein for causing a computer to prevent unauthorized duplication of a particular software program among a plurality of active software programs executed on the computer, the computer readable program code means in the computer program product comprising;

receive means for causing the computer to receive an indication that the particular software program is one of the plurality of active software programs on the computer;

monitoring means for causing the computer to monitor operation of the computer to determine which of the plurality of the active software programs is being currently executed; and

disable means for causing the computer to disable execution of the particular software program when the monitoring means determines that the particular software program is not the currently executed software program.