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In Win2k what exactly is a difference between a Application and a processes?

D

Daxxax

Senior member
When I do a ctrl-alt-delete and goto my security window and hit task manager there are two tabs one for applications and one for processes. From what I can see most of the processes are executable's so are they not for the most part apps too?? I know some of them are services and what not but I was wondering how Win2k seperates the two??? What defines a app?? and what defines a process?? thanks.
 
An application is a piece of software you would interact with and use. A process is a piece of running code that has it's own memory, files, time slice, etc associated with it, if you wanted you could divide this up more granular into threads which are seperate chunks of executable code that belong to a process mainly used so a single app can take advantage of multiple CPUs.

I think Windows just considers anything with a task bar entry an "application". An application can have more than one process and a process can have more than one thread.
 
Thanks that makes more sense, I guess I was confused because in Win 9x pretty much everything shows up under tasks. The problem is I am having some issues with IE freezing up, under the taskmanager it is listed as (not responding) I am going to try and shutoff a few things in the backgroud and see if that helps. does anyone know where I can find a list of processes that absolutely have to be running in Win2k?? I have 35 processes running and I'm sure that I should be able shutdown a few of them.
 
"Not Responding" doesn't necessarily mean hung, the app could be blocking on any number of things (normally disk or network I/O though) and will be fine again as soon as it's syscall finishes.

Go through the services control panel and disable things you don't need.
 
If a process has some type of a User-Interface, it is classified as an Application (console applications may be exceptions in certain cases). My Win2K system has 15 processes when no applications are running. There are services which can be disabled if you don't need them.
 
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