Application is only executed in debug mode

Question

Hello,
I've implemented an application in c# and before publishing it, I've executed it and I didn't find any problem although, after publishing I've tried to execute the exe file locate in start/programs menu and it starts but suddenly in less than a second it stops and the Windows Forms window dissapear.
I've executed the executable generated in /Debug folder and it works fine, I only have problems with the published solution and the one located in /Publish folder.
Do you know what is happening?
 
Many thanks
 
Jesús.