For MS17-010 for XP, there are 2 versions

For SP3

http://download.windowsupdate.com/d/csa/csa/secu/2017/02/windowsxp-kb4012598-x86-custom-enu_eceb7d5023bbb23c0dc633e46b9c2f14fa6ee9dd.exe

for SP3 embeded

http://download.windowsupdate.com/c/csa/csa/secu/2017/02/windowsxp-kb4012598-x86-embedded-custom-enu_8f2c266f83a7e1b100ddb9acd4a6a3ab5ecd4059.exe