Gentlemen.. I have tried EVERY single thing to solve that uxcore.dll error in Windows XP. -I unistalled and installed WXP. Result: The Same! -I even formatted my hdd many times and installed XP and tried again installing WLM. Result: Same again!! -I've tried deleting that contacts folder from where it was as many people over net said. Result: SAME AGAIN!! And I tried many recommendations that I've read in many forums,blogs etc. but none of them helped anyway. Doesn't Microsoft think of solving that aching problem??