skypehost.exe is a application which is most likely legit. So, if skypehost.exe is on your system, it is most likely ok, and will NOT be a cause for concern. Even if your PC is virus-free, we still advise you to purchase a good antivirus with a good detection rate, in order to yourself your PC against threats.
Usually, this application is located in C:\Program Files\WindowsApps\Microsoft.SkypeApp_11.17.420.0_x86__kzf8qxf38zg5c\SkypeHost.exe.
The MD5 fingerprint for this file is dfb348497a7e7a39972144a599f4941a.
This program does NOT operate as a Windows service. This is normally a good sign.
This program uses the Internet to communicate. Today this is ok. For example, most of the apps on your PC check for updates. In order to do this, Internet communications are required.
This app runs in 32-bit mode. It does not exploit the full set of features of modern PC chips. This ordinarily happens because the publishers did not bother to upgrade it to use the x64 instruction set.
The digital certificate is missing from this program. The authors did not sign it. This is probably bad.
It has an uninstall string in registry, which is good. si are uninstall.