出现这种情况是由于您的网站超过了iis限制造成的

由于2003的操作系统在提示IIS过多时并非像2000系统提示“链接人数过多”，而是提示"Service Unavailable",出现这种情况是由于网站超过了系统资源限制造成的，主要是程序占用资源太多-This occurs because your sites over iis restrictions caused due to the operating system in 2003 prompted IIS is not too much like 2000 when prompted " an excessive number of links" , but prompt " Service Unavailable" , this situation is As the site over the system due to resource constraints, programs are using too many resources are mainly