I want tally erp 9 release 1.1, build 189 crack file?

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I have installed tally erp 9 release 1.1 build 189. But it is asking me licence key to run. Somebody said me it is in need of a crack file. I tried it's crack file on net. But i did not get. If anybody knows about this, please help me in this issue. Let me know the site which gives it's crack file on net. OR.... Is there any alternative solution for tally erp 9 multi user version.