Server memory footprint too high how to solve?

A. First, the process is sorted by http://www.aliyun.com/zixun/aggregation/11435.html "> Task Manager" to find the program processes that occupy large memory. Typically memory-intensive processes have w3wp, SQL Server, Mysqld-nt.exe
B. The site process w3wp can be in the cmd command line through the Iisapp command to correspond is that the site occupies a large memory. You can reduce memory consumption by setting the recycle time, maximum memory usage, or pooling process pool, but if you want to ensure the quality of your site's access, it is recommended that you upgrade to a higher model for resolution.
C. Database SQL Server can also use the Database Enterprise Manager to set the maximum memory footprint, but if the Web site program must occupy large memory, the settings will occur after the page error, can not open and so on.
D. MySQL itself consumes a large amount of virtual memory and can be stopped without using the MySQL database.