@mackis3D:

If you are quoting stuff which is along the usual lines of "oh my gosh, Windows 7 (or Vista before it) uses x much more RAM than XP" then there is no point in trying to explain things really.

Yes, Win7 (and Vista) 'use' more RAM than XP. Tell me, what is RAM there for? To be used right? Tell me, when you bring up task manager and see x much RAM free why do you think it is better to have more free?

Windows 7 and Vista make use of available free RAM for pre-caching so, rather than that RAM sitting there doing nothing, and unused RAM is wasted RAM, then they try to make best use of it by pre-caching potential code.

If that RAM is needed by any application then it is immediately dropped and is free to be used by those requesting applications - it is not lost.

Quote -
But if I can't load Poser scenes as big as I did in XP64 with my RAM because Windows 7 uses them more

Windows 7 x64 is far better than XP x64 both in terms of memory management and execution. If you can't do something in 7 then there is something else at fault.

Quote -
 and I can't even switch off some of the services that were not needed in XP it does not make sense to me.

Why would you want to switch off services. You gain miniscule amounts of RAM back, if any, from them since they consume tiny amounts if idle anyway.

Quote -
You asked about 'too large': well almost double as much services as in XP...

And declaring that Windows 7 is too large because it has twice as many services as XP is just wrong on many levels. Have you decompiled those services to ascertain that they are basically the same on each OS? Are you saying you know better than the OS developers what services are needed?