i had been reqeusted to rebuild a friends computer that had Windows Vista. I upgraded the RAM from 1GB to 2 x 1GB RAM and saw a big difference. A friend had the same computer and he recommended the ExpressCard and he had purchased one and had improved the memory situation on his laptop. It was very easy to insert, just remember with doing any upgrade to remove the plug socket and then remove the battery! Removed the faceplate of where the ExpressCard was to be inserted, at this point wasn't sure if the ExpressCard was to be fitted inside the caddy of the plate, and being the tupical bloke that doesn't read the instructions until you're stuck, decided the only way it could go in was without the faceplate and the caddy. The ExpressCard clicks in, there is a gap of approximately 1/2".
Replace the battery and power lead and boot up. Providing the ExpressCard has been inserted in correctly the laptop upon booting up will recognise the device, a dialogue will apepar and ask two questions - do you want to use it as system memory or as additional memory. Choose "system"; what then happens is it use the ExpressCard as the 'swop file' that is held on your hard-drive. With it being "SSD" (solid state drive) this is considerably faster than the hard-disk.
The Vista operating system is slow, therefore if you've 'maxed out' the available RAM memory it is an option that you may wish to consider.