modelsim-alter 5.8e的license设置问题 license, 设置

zzkeng

装modelsim-alter 5.8e时
1.Install, Select Full product instllation. When asked for security key, select no. When you
  see License Wizard dialog, select close because license wizard dont know our license's format.
2.Use our keygen to generate license.dat, copy it to c:\flexlm directory.
3.set enviroment string: LM_LICENSE_FILE = c:\flexlm\license.dat
4.Start Modelsim and have fun.
第二步中的c:\flexlm文件夹在哪？是自己创建吗？

还有第三步怎么设啊？LM_LICENSE_FILE 在哪？