Join C# Application Dependencys in a single Executable and make it flexible

Hi I have an application reading a textfile from a website and building a downloadstring with it. [login to view URL] -> [login to view URL] https:// + [login to view URL] + /file It then downloads and executes "file". In an old version it did that with webclient methods, which is deprecated, now I want it to be better than ever. So the new one has to use HTTPClient, in my case this made a few dependencies neccessary, I need them to be included in one single file or just make it work without them. The second part is to make it more flexible and use for example read a file to find the strings, tell it to run the file or not, and be able to run powershell. [login to view URL] -host [login to view URL] -file /[login to view URL] -out %temp%\[login to view URL] -run 1 -arguments "1 2 3" [login to view URL] -file [login to view URL] -out %temp%\[login to view URL] -run 1 -arguments "-PSArgument 123" Attached the current project.