I have crashes since i entered Flotsam i have the similar crashes in The Witcher 1 and since then i read about this solution but i never get it to work.I will post a screen of what the error in the cmd is and maybe i can put the 3 gb switch and forget about the crashes :).
http://imageshack.us/photo/my-images/156/unledye.jpg
PS:Please help i buyed the game and i can't play it.
PS2:Sorry if my English is bad it's not my native one.

Try running the command from c:\windows\system32

still the same :>

Remove the quotes around the command.
They're not needed. I just ran the same command from command prompt in my users folder but without the " and it ran fine :)

http://imageshack.us/photo/my-images/199/unledtn.jpg
This time another error but still not working :>
PS:It's Windows 7 32 btw