Remote installation using psexec

[mdavtec]

I'm trying to understand how one can install on a remote system. We currently build MSI and if we run MSI it extract an exe in %TEMP% folder. This EXE's name is like {GUID}.exe. It appears that this EXE is actually installing the product on the system. I'm trying to understand this. I also wonder if the exe file ("{GUID}.exe") can be use to install the product on remote system using psexec.exe.

Thanks in advance.