On: AvastSvc.exe contains a full, unsandboxed JavaScri...

[Moru]

The difference is that C needs to be compiled to run on anything, javascript does not.

[saagarjha → Moru]

Right, but JavaScript needs a runtime to work at all. And I don't think there was any requirement that the language couldn't be compiled?

[GoblinSlayer → saagarjha]

It's not like you seriously want to run C without a runtime.

[saagarjha → GoblinSlayer]

Many people do in fact do this, often for embedded systems. And most other systems happen to ship with a C runtime.

[pjmlp → Moru]

There are C interpreters, commercial and open source since the mid-90's, don't mix languages with implementations.