Process Explorer is a super-powerful, free alternative to Task Manager, from Microsoft.

Command Line arguments screen in Process Explorer Using the information shown in these columns, you can now determine what arguments the various processes were started with and diagnose the ...

Process Explorer Is Task Manager Dialed To 11 Process Explorer —originally a third-party app Microsoft acquired in the early 2000s—takes the best parts of Task Manager and gives you so much more.

In Process Explorer, double-click the suspicious process, then click the 'TCP/IP' tab. To convert the IP addresses listed into DNS names, ensure that the 'Resolve Addresses' tick box is selected.

Process Explorer replaces Task Manager and does a better job in every way, and it's free for commercial and non-commercial use (as long as you don't try to redistribute it).

I skimmed the surface with a couple blog postings in 2008 (Using Process Explorer to tame svchost.exe and Process Explorer, Part 2) and won’t attempt to sell you on the software here.

Other than that, Process Explorer gives you insights into resource usage in real-time, such as CPU, memory, and disk activity.