I checked the instruction carefully ,so as to avoid basic error for to do HIL tests.
I found the NI VeriStand Version Compatibility from the Web http://www.ni.com/product-documentation/54028/en/,which clearly shows 2015SP1 is installable on XP,see as below:

but when I was installing it ,it shows:

I feel very bad! I spend almost one whole day to download and install several large softwares ,such as matlab\VS, now I need to reinstall them all ,and even the OS.
I suggest NI to do the documents carefully later.