Launch Application FROM PC1(located in Brazil), on Execute on PC2(located in USA).

Question

Hello there guys. My application is well under progress, Thanks to you guys helping.
I was wondering if some one knows how to launch an application on another computer from here... via TCP connection.

For example.

PC1 in BRAZIL, Launch an application on PC2 in USA, from PC1 in brazil.
Is that hard? ...
I don't care how it is done, hopefully, I will need no other softwares to be installed on PC2 to run app from pc 1.

If possible, IP, User Name, Pw (windows login) if we can do that with only this info, it will be super.

Thank you guys.