diff --git a/Cargo.lock b/Cargo.lock
index 99ebbe7e3..974206727 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -52,6 +52,7 @@ dependencies = [
  "time 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
  "toml 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ws2_32-sys 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
diff --git a/Cargo.toml b/Cargo.toml
index f0978f420..8420c5459 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -24,6 +24,7 @@ serde = "0.9"
 serde_json = "0.9"
 app_dirs = "1.1.1"
 fdlimit = "0.1"
+ws2_32-sys = "0.2"
 hyper = { default-features = false, git = "https://github.com/paritytech/hyper" }
 ctrlc = { git = "https://github.com/paritytech/rust-ctrlc.git" }
 jsonrpc-core = { git = "https://github.com/paritytech/jsonrpc.git", branch = "parity-1.7" }
diff --git a/mac/Parity/AppDelegate.swift b/mac/Parity/AppDelegate.swift
index 3bf3bdd31..c017e79bd 100644
--- a/mac/Parity/AppDelegate.swift
+++ b/mac/Parity/AppDelegate.swift
@@ -26,7 +26,6 @@ class AppDelegate: NSObject, NSApplicationDelegate {
 	let statusItem = NSStatusBar.system().statusItem(withLength: NSVariableStatusItemLength)
 	var parityPid: Int32? = nil
 	var commandLine: [String] = []
-	let defaultConfig = "[network]\nwarp = true"
 	let defaultDefaults = "{\"fat_db\":false,\"mode\":\"passive\",\"mode.alarm\":3600,\"mode.timeout\":300,\"pruning\":\"fast\",\"tracing\":false}"
 	
 	func menuAppPath() -> String {
@@ -51,7 +50,7 @@ class AppDelegate: NSObject, NSApplicationDelegate {
 	
 	func killParity() {
 		if let pid = self.parityPid {
-			kill(pid, SIGINT)
+			kill(pid, SIGKILL)
 		}
 	}
 	
@@ -81,9 +80,6 @@ class AppDelegate: NSObject, NSApplicationDelegate {
 			}
 		
 			let configFile = basePath?.appendingPathComponent("config.toml")
-			if !FileManager.default.fileExists(atPath: configFile!.path) {
-				try defaultConfig.write(to: configFile!, atomically: false, encoding: String.Encoding.utf8)
-			}
 		}
 		catch {}
 	}
diff --git a/parity/main.rs b/parity/main.rs
index 3e499d483..2044b3ee0 100644
--- a/parity/main.rs
+++ b/parity/main.rs
@@ -75,6 +75,9 @@ extern crate ethcore_secretstore;
 #[cfg(feature = "dapps")]
 extern crate ethcore_dapps;
 
+#[cfg(windows)] extern crate ws2_32;
+#[cfg(windows)] extern crate winapi;
+
 macro_rules! dependency {
 	($dep_ty:ident, $url:expr) => {
 		{
@@ -123,7 +126,7 @@ mod stratum;
 use std::{process, env};
 use std::collections::HashMap;
 use std::io::{self as stdio, BufReader, Read, Write};
-use std::fs::{remove_file, metadata, File};
+use std::fs::{remove_file, metadata, File, create_dir_all};
 use std::path::PathBuf;
 use util::sha3::sha3;
 use cli::Args;
@@ -210,10 +213,11 @@ fn latest_exe_path() -> Option<PathBuf> {
 }
 
 fn set_spec_name_override(spec_name: String) {
-	if let Err(e) = File::create(updates_path("spec_name_overide"))
-		.and_then(|mut f| f.write_all(spec_name.as_bytes()))
+	if let Err(e) = create_dir_all(default_hypervisor_path())
+		.and_then(|_| File::create(updates_path("spec_name_overide"))
+		.and_then(|mut f| f.write_all(spec_name.as_bytes())))
 	{
-		warn!("Couldn't override chain spec: {}", e);
+		warn!("Couldn't override chain spec: {} at {:?}", e, updates_path("spec_name_overide"));
 	}
 }
 
@@ -227,12 +231,24 @@ fn take_spec_name_override() -> Option<String> {
 
 #[cfg(windows)]
 fn global_cleanup() {
-	extern "system" { pub fn WSACleanup() -> i32; }
 	// We need to cleanup all sockets before spawning another Parity process. This makes shure everything is cleaned up.
 	// The loop is required because of internal refernce counter for winsock dll. We don't know how many crates we use do
 	// initialize it. There's at least 2 now.
 	for _ in 0.. 10 {
-		unsafe { WSACleanup(); }
+		unsafe { ::ws2_32::WSACleanup(); }
+	}
+}
+
+#[cfg(not(windows))]
+fn global_init() {}
+
+#[cfg(windows)]
+fn global_init() {
+	// When restarting in the same process this reinits windows sockets.
+	unsafe {
+		const WS_VERSION: u16 = 0x202;
+		let mut wsdata: ::winapi::winsock2::WSADATA = ::std::mem::zeroed();
+		::ws2_32::WSAStartup(WS_VERSION, &mut wsdata);
 	}
 }
 
@@ -241,15 +257,17 @@ fn global_cleanup() {}
 
 // Starts ~/.parity-updates/parity and returns the code it exits with.
 fn run_parity() -> Option<i32> {
-	global_cleanup();
+	global_init();
 	use ::std::ffi::OsString;
 	let prefix = vec![OsString::from("--can-restart"), OsString::from("--force-direct")];
-	latest_exe_path().and_then(|exe| process::Command::new(exe)
+	let res = latest_exe_path().and_then(|exe| process::Command::new(exe)
 		.args(&(env::args_os().skip(1).chain(prefix.into_iter()).collect::<Vec<_>>()))
 		.status()
 		.map(|es| es.code().unwrap_or(128))
 		.ok()
-	)
+	);
+	global_cleanup();
+	res
 }
 
 const PLEASE_RESTART_EXIT_CODE: i32 = 69;
@@ -257,10 +275,11 @@ const PLEASE_RESTART_EXIT_CODE: i32 = 69;
 // Run our version of parity.
 // Returns the exit error code.
 fn main_direct(can_restart: bool) -> i32 {
+	global_init();
 	let mut alt_mains = HashMap::new();
 	sync_main(&mut alt_mains);
 	stratum_main(&mut alt_mains);
-	if let Some(f) = std::env::args().nth(1).and_then(|arg| alt_mains.get(&arg.to_string())) {
+	let res = if let Some(f) = std::env::args().nth(1).and_then(|arg| alt_mains.get(&arg.to_string())) {
 		f();
 		0
 	} else {
@@ -280,7 +299,9 @@ fn main_direct(can_restart: bool) -> i32 {
 				1
 			},
 		}
-	}
+	};
+	global_cleanup();
+	res
 }
 
 fn println_trace_main(s: String) {