Task Manager
The simplest way to monitor what's happening live on a Windows server is to use the Task Manager, available by right-clicking on the Start bar or by hitting Control + Shift + Escape. This provides a similar view to the UNIX top
utility.
Sysinternals tools
Another more powerful option is to download the Process Explorer and Process Monitor programs from the Sysinternals toolkit; refer to http://technet.microsoft.com/en-us/sysinternals/.Process Explorer in particular lets you monitor the system viewing the process title information, and is considered a must have utility for Windows PostgreSQL servers accordingly.