![Dual Dual](/uploads/1/2/5/4/125483498/754741394.png)
This is a very common question about 64-bit processors. As you know, Windows XP is 32-bit, but your processor is both 32-bit and 64-bit. It will run 32/64-bit applications both with ease. 64-bit means little today. You could upgrade to XP 64-bit, but then you need 64-bit programs and there is a lot of hassle.
Jul 03, 2013 AMD Athlon(tm) 64 X2 Dual Core Processor 4400+, 231 What is the best windows for AMD Athlon (tm) 64 X2 dual core processor 5600 2 91 How good is a AMD Athlon(tm) 64 X2 Dual Core Processor 4600 MMX. Download the latest AMD Athlon 64 X2 5600+ device drivers (Official. AMD Athlon 64 X2 5600+ drivers are tiny programs that enable your Processor.
Not worth it. Just do everything the same as you would do with another processor. Also, forget anything about XP Home incompatability with dual-core. You will be fine. EDIT: You may need an update, as has been mentioned.