Yes, it only adds eye-candy... It is not necessary to enable these features to enjoy Windows 7, if you enable aero without the proper hardware you will slow down your system.
my video card is Radeon ATI 4850 512mb and Quad Core 6600.. and 4GB memory, it's running smooth I think, all three cost around $250 to $350
Aero requires at least 128MB video memory and Dx9 support on the video card. Make sure you get a new card that meets these requirements.
Actually i915 GPU hardware-wise COULD have WDDM drivers, but Intel or M$ never bothered to write one for whatever reason sebus
Oh, and don't get scared by the comments like: buy a new card. I just got one for 40-45 Euros, that is actually pretty good : ASUS EAH4350 Silent 1GB.
The conclusion of this thread is that I'm a crazy and disappinted man who again and again is asking for any cracking method of enabling aero without graphic card. Everyone is asking me to buy a new graphic card. I've already said I cannot buy. Pathetic, no one has any cracking file of enabling aero.
Okay, lets put an end to this and some things up. You need at least 128mb of graphics memory to support aero features. This can be via an add in GPU or onboard integrated graphics. If you have neither of these then its simple............... No Aero. I think its time to close now.