application base priority auto changes

Hi, I have noticed that when I run certain applications, win7 decides to auto-change the base priority to a lower value. This occurs even when I still have plenty of available memory and cpu to give. This always causes the application to run laggy. So manually setting base priority does nothing. Win7 disregards my settings. Is there a reason for this?

The behaviour I prefer is that when a user sets a base priority of NORMAL, the application will have its minimum priority set to NORMAL and not auto change it to a lower value. I mean, that's what *BASE* priority means - right? The way its behaving now, the column should be called 'variable priority'.

Is there some setting/app I can use to force an application to maintain the base priority I specify?

I never had issues like this when I had XP 32bit installed on this same laptop, even when 3 or more instances of the same app was installed. It ran smooth.

I have tried:

1. running application via command prompt using: start /<priority> <program>
2. used Prio app: Prio - Priority Saver

But nothing works

I am running Windows 7 Ultimate (build 7601) 64-bit with 4 GB RAM.

Thanks for any help.

Windows 7 does not auto-change applications priority. Applications can change their own or another application, but Windows 7 itself does no such thing.