iLauncher missing,

[harry37]

I have a samsung st150f, the ilauncher software has vworked well until very recently but now it's disappeared , no amount of reloading works. When I try to 'Auto update' I get as far oas 'cnfirm' when it shows the 'WiFi' fan -- it then says the pc is not connected. I'd be grateful if someone with tech nohow could suggest a solution