This is a continuation of my previous posting (Using Process Explorer to tame svchost.exe - Advanced topics) which introduced the excellent Process Explorer program, a souped up version of Task Manager. According to the author, "Process Explorer works on Windows 9x/Me, Windows NT 4.0, Windows 2000, Windows XP, Server 2003, and 64-bit versions of Windows for x64 and IA64 processors, and Windows Vista." And, it's free.
When a computer is running slow, people sometimes guess at the underlying problem. An experienced Process Explorer user doesn't have to guess.