关于这个软件的安装方法

ansys2007

CRACK里面是这样写的：
TO RUN THE PROGRAM IS NECESSARY:


1) LAUNCH FROM THE DOS THE PROGRAM LMUTIL
2) RUN IN LMUTIL PROGRAM THE COMMAND "LMUTIL LMHOSTID" O KNOW THE HOSTID OF YOUR PC
3) COPY THIS ID NUMBER IN THE FILE PERM.LIC OF THE CRACK IN EVERY LINE WHERE IS  "HOSTID=........." FOR ALL THE PROGRAMS (SE3P,VADOSE,QUAKE,ETC...)
4) Copy the GSI.dll in ur installed file and point to the MODIFIED license

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请问一下这第一步我该怎么办？是要进DOS吗，不会啊。。。。。。。。。。
接写来该怎么办啊，愁死啦。。。