I am running XP Home SP3 fully patched. I have some old software originally written for Window 3.1 that has continued to work quite happliy until now. I know it worked on 18 September as that is when the last usage of it was. Since then I have applied all the software patches (15). Now when I click on one of these applications, I get the hourglass for a second, then nothing. I have tried all the compatibility options, but none work. I have to assume that M$ have done something, but what? And how can I get these applications working again?