在win7 64位系统下安装Virtual.Lab 12 64位过程出现问题“The service pack for the LMS virtual。lab infrastructure could not be installed 。please check if any CATIA processes arerunning (like a LUM server),stop them and try again”但我的电脑里面重来没安装过CATIA,找了一下也没有LUM server ,不知道是什么原因??