All I can say is to Increase what is called under Windows the [b]Swap File[/b] or [b]Page File[/b] Minimum Size.
That will increase your Virtual RAM but depending on how much you have loaded it may have no effect on the way that the applications run.
As a Starting point the Page File should be at least 1.5 times the Actual Ram to 2 Times the Actual RAM but if you have a small amount of RAM installed you can make the Minimum Size 300% the Amount of Installed RAM for the Lower End and 500% of installed RAM at the higher end.
So if you have 1 GIG of RAM installed in the computer you can make the Minimum Size 3 GIG and the Upper Size 5 GIG. If you have 256 MEG of RAM installed you could start off with a Minimum Size of 1 GIG and a Upper Size of 2 GIG and depending on how fast your HDD can transfer Data it may help to improve things.