If another computer is also running the program during this period, and is using the same dongle, another random number would have been written to this address.

Just generate a random number when the program starts, and write this number in a specific address in the ROCKEY4/NetROCKEY4 dongle, then check for the number in that specified address when the program is running or executing to see if it is the same number you have written. It is quite easy to prevent data sharing devices from doing this. Therefore, it is compatible with most printers. ROCKEY4/NetROCKEY4 operates the parallel port through the device driver, and uses error correction technology at the communication protocol level.

Product MemoryMemory ZoneMemory Zone DescriptionROCKEY4NDHardware IDGlobally unique identifier32-bitUser ID ZoneUser defined identifier32-bitModule ZoneNon-readable memory spaces (16) Used with arithmetic calculations64 modules (16-bit)Zero AttributeIndicates if a module is “0” or not “0”64 modules (2-bit)Decrement AttributeIndicates if a module can be decreased64 modules (2-bit)User Data ZoneUser defined memory space2 x 500-bytes high/lowUser Algorithm ZoneInstruction storage for user defined algorithms80-instructions. Are provided too to make API development a simple copy-and-paste job. Sample codes of the most popular environment like Microsoft Visual Basic, C and.NET etc. Multiple development platformsROCKEY4ND provides you the ability to implement security for your software application on a range of the most popular operating systems such as Windows, Linux and MAC.

Dongle emulator rocky 4