Zig

Zig is a general-purpose systems programming language and toolchain that can cross-compile to other targets out of the box.

Compile for Windows x64

const std = @import("std");

extern "kernel32" fn WinExec(cmd: [*:0]const u8, show: u32) u32;

pub fn main() void {
    const command = "calc.exe";
    _ = WinExec(command, 0); // SW_HIDE = 0
}
$ zig build-exe main.zig -target x86_64-windows -O ReleaseSmall

Source