刚装上proteus，运行程序时出现这样的错误，怎么解决？
刚学proteus，装了一个proteus 6.9 sp2,运行它的例子，出现下面的错误：SIMULATION LOG
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Design: D:\Proteus 6.7(仿真电路)\JJJ仿真电路\串口仿真\usart_t\usart.DSN
Doc. no.: <NONE>
Revision: <NONE>
Author: <NONE>
Created:05/09/16
Modified: 06/05/01
Compiling source files...
Build completed OK.
Compiling netlist...
Linking netlist...
Partition analysis...
Simulating partition 1
PROSPICE Release 6.9 SP2 (C) Labcenter Electronics 1993-2006.
SPICE Kernel Version 3f5. (C) Berkeley University ERL.
Reading netlist...
ERROR: [$IVIRTUAL TERMINAL#0008] DSIM model VTERM.DLL failed to authorize - Product Key does not match Customer Key.
FATAL: External model DLL "COMPIM.DLL" not found. GLE=0x00000002.
Simulation FAILED due to fatal simulator errors.
各位高手，知道这是怎么回事吗？？ Product Key does not match Customer Key 这个什么意思？刚接触，很不懂，能详细告诉我解决方法吗，谢谢 Product Key does not match Customer Key.
这个什么意思？
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没有破解，或没有完美破解，致使软件产品密钥与客户密钥不匹配。
英文稍微学一点，应该不成为问题。
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