Accessing via internet- Out of domain - Setup.exe [publish]

[Mahey]

I have completed a small project, and created setup.exe-thru publish tab. now I want to give it to my remote users not connected with LAN & Domain.

I came to know this setup.exe can usefull for remote access of this application. But I don't know what are all the services required to run?

And when I check from another computer via internet it's showing the sql-server connection error. But when I run the same program under LAN, it's working good.

But when I tried to access via internet it's showing sql-server connection error..?

Any helps? Thanks