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Standard: Key-CD
checked every time program is being started. Enhanced version: Object module
linked in various places can perform additional key-CD checks upon request.
Good for ultimate security but requires some implementation. Machine Install version: Key-CD checked during installation and program is then machine installed. It will then run from that machine without key-CD. Can be installed several places from original CD ! Hard expiry version: Key-CD checked every time program is being loaded but refuses to run after a certain preselected date. This date is absolute ie. not to be confused with relative expiry (xx days after installation). Can be used for demo purposes. Regular key-CD insertion: Key-CD checked only
once in a while. Comes with a warning a number of days before it expires - original
CD must then be inserted. Insertion interval can be chosen - typically 2-4 weeks. See NetCops
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Topics: software security, software piracy, anti-piracy, software metering, license management, license control, software protection, CD-ROM protection, CD-Cops, CopyLock,WinCops, DialCops, DialProg, copy protection, copy discouragement, illegal copying, illegal distribution, DVD-Cops, WebCops, CdCops, demo protection, machine installation, Crypto, data encryption, load mode, reboot mode, key diskette, keydisk