diff --git a/lib/std/os/windows.zig b/lib/std/os/windows.zig
index 9cdf8e9317..bc360e7e70 100644
--- a/lib/std/os/windows.zig
+++ b/lib/std/os/windows.zig
@@ -16,6 +16,7 @@ pub const kernel32 = @import("windows/kernel32.zig");
 pub const ntdll = @import("windows/ntdll.zig");
 pub const ole32 = @import("windows/ole32.zig");
 pub const shell32 = @import("windows/shell32.zig");
+pub const ws2_32 = @import("windows/ws2_32.zig");
 
 pub usingnamespace @import("windows/bits.zig");
 
diff --git a/lib/std/os/windows/ws2_32.zig b/lib/std/os/windows/ws2_32.zig
new file mode 100644
index 0000000000..1fe5d87496
--- /dev/null
+++ b/lib/std/os/windows/ws2_32.zig
@@ -0,0 +1,186 @@
+usingnamespace @import("bits.zig");
+
+pub const SOCKET = *@OpaqueType();
+pub const INVALID_SOCKET = @intToPtr(SOCKET, ~@as(usize, 0));
+
+pub const MAX_PROTOCOL_CHAIN = 7;
+
+pub const WSAPROTOCOLCHAIN = extern struct {
+    ChainLen: c_int,
+    ChainEntries: [MAX_PROTOCOL_CHAIN]DWORD,
+};
+
+pub const WSAPROTOCOL_LEN = 255;
+
+pub const WSAPROTOCOL_INFOA = extern struct {
+    dwServiceFlags1: DWORD,
+    dwServiceFlags2: DWORD,
+    dwServiceFlags3: DWORD,
+    dwServiceFlags4: DWORD,
+    dwProviderFlags: DWORD,
+    ProviderId: GUID,
+    dwCatalogEntryId: DWORD,
+    ProtocolChain: WSAPROTOCOLCHAIN,
+    iVersion: c_int,
+    iAddressFamily: c_int,
+    iMaxSockAddr: c_int,
+    iMinSockAddr: c_int,
+    iSocketType: c_int,
+    iProtocol: c_int,
+    iProtocolMaxOffset: c_int,
+    iNetworkByteOrder: c_int,
+    iSecurityScheme: c_int,
+    dwMessageSize: DWORD,
+    dwProviderReserved: DWORD,
+    szProtocol: [WSAPROTOCOL_LEN + 1]CHAR,
+};
+
+pub const WSAPROTOCOL_INFOW = extern struct {
+    dwServiceFlags1: DWORD,
+    dwServiceFlags2: DWORD,
+    dwServiceFlags3: DWORD,
+    dwServiceFlags4: DWORD,
+    dwProviderFlags: DWORD,
+    ProviderId: GUID,
+    dwCatalogEntryId: DWORD,
+    ProtocolChain: WSAPROTOCOLCHAIN,
+    iVersion: c_int,
+    iAddressFamily: c_int,
+    iMaxSockAddr: c_int,
+    iMinSockAddr: c_int,
+    iSocketType: c_int,
+    iProtocol: c_int,
+    iProtocolMaxOffset: c_int,
+    iNetworkByteOrder: c_int,
+    iSecurityScheme: c_int,
+    dwMessageSize: DWORD,
+    dwProviderReserved: DWORD,
+    szProtocol: [WSAPROTOCOL_LEN + 1]WCHAR,
+};
+
+pub const GROUP = u32;
+
+pub const SG_UNCONSTRAINED_GROUP = 0x1;
+pub const SG_CONSTRAINED_GROUP = 0x2;
+
+pub const WSA_FLAG_OVERLAPPED = 0x01;
+pub const WSA_FLAG_MULTIPOINT_C_ROOT = 0x02;
+pub const WSA_FLAG_MULTIPOINT_C_LEAF = 0x04;
+pub const WSA_FLAG_MULTIPOINT_D_ROOT = 0x08;
+pub const WSA_FLAG_MULTIPOINT_D_LEAF = 0x10;
+pub const WSA_FLAG_ACCESS_SYSTEM_SECURITY = 0x40;
+pub const WSA_FLAG_NO_HANDLE_INHERIT = 0x80;
+
+pub const WSA_INVALID_HANDLE = 6;
+pub const WSA_NOT_ENOUGH_MEMORY = 8;
+pub const WSA_INVALID_PARAMETER = 87;
+pub const WSA_OPERATION_ABORTED = 995;
+pub const WSA_IO_INCOMPLETE = 996;
+pub const WSA_IO_PENDING = 997;
+pub const WSAEINTR = 10004;
+pub const WSAEBADF = 10009;
+pub const WSAEACCES = 10013;
+pub const WSAEFAULT = 10014;
+pub const WSAEINVAL = 10022;
+pub const WSAEMFILE = 10024;
+pub const WSAEWOULDBLOCK = 10035;
+pub const WSAEINPROGRESS = 10036;
+pub const WSAEALREADY = 10037;
+pub const WSAENOTSOCK = 10038;
+pub const WSAEDESTADDRREQ = 10039;
+pub const WSAEMSGSIZE = 10040;
+pub const WSAEPROTOTYPE = 10041;
+pub const WSAENOPROTOOPT = 10042;
+pub const WSAEPROTONOSUPPORT = 10043;
+pub const WSAESOCKTNOSUPPORT = 10044;
+pub const WSAEOPNOTSUPP = 10045;
+pub const WSAEPFNOSUPPORT = 10046;
+pub const WSAEAFNOSUPPORT = 10047;
+pub const WSAEADDRINUSE = 10048;
+pub const WSAEADDRNOTAVAIL = 10049;
+pub const WSAENETDOWN = 10050;
+pub const WSAENETUNREACH = 10051;
+pub const WSAENETRESET = 10052;
+pub const WSAECONNABORTED = 10053;
+pub const WSAECONNRESET = 10054;
+pub const WSAENOBUFS = 10055;
+pub const WSAEISCONN = 10056;
+pub const WSAENOTCONN = 10057;
+pub const WSAESHUTDOWN = 10058;
+pub const WSAETOOMANYREFS = 10059;
+pub const WSAETIMEDOUT = 10060;
+pub const WSAECONNREFUSED = 10061;
+pub const WSAELOOP = 10062;
+pub const WSAENAMETOOLONG = 10063;
+pub const WSAEHOSTDOWN = 10064;
+pub const WSAEHOSTUNREACH = 10065;
+pub const WSAENOTEMPTY = 10066;
+pub const WSAEPROCLIM = 10067;
+pub const WSAEUSERS = 10068;
+pub const WSAEDQUOT = 10069;
+pub const WSAESTALE = 10070;
+pub const WSAEREMOTE = 10071;
+pub const WSASYSNOTREADY = 10091;
+pub const WSAVERNOTSUPPORTED = 10092;
+pub const WSANOTINITIALISED = 10093;
+pub const WSAEDISCON = 10101;
+pub const WSAENOMORE = 10102;
+pub const WSAECANCELLED = 10103;
+pub const WSAEINVALIDPROCTABLE = 10104;
+pub const WSAEINVALIDPROVIDER = 10105;
+pub const WSAEPROVIDERFAILEDINIT = 10106;
+pub const WSASYSCALLFAILURE = 10107;
+pub const WSASERVICE_NOT_FOUND = 10108;
+pub const WSATYPE_NOT_FOUND = 10109;
+pub const WSA_E_NO_MORE = 10110;
+pub const WSA_E_CANCELLED = 10111;
+pub const WSAEREFUSED = 10112;
+pub const WSAHOST_NOT_FOUND = 11001;
+pub const WSATRY_AGAIN = 11002;
+pub const WSANO_RECOVERY = 11003;
+pub const WSANO_DATA = 11004;
+pub const WSA_QOS_RECEIVERS = 11005;
+pub const WSA_QOS_SENDERS = 11006;
+pub const WSA_QOS_NO_SENDERS = 11007;
+pub const WSA_QOS_NO_RECEIVERS = 11008;
+pub const WSA_QOS_REQUEST_CONFIRMED = 11009;
+pub const WSA_QOS_ADMISSION_FAILURE = 11010;
+pub const WSA_QOS_POLICY_FAILURE = 11011;
+pub const WSA_QOS_BAD_STYLE = 11012;
+pub const WSA_QOS_BAD_OBJECT = 11013;
+pub const WSA_QOS_TRAFFIC_CTRL_ERROR = 11014;
+pub const WSA_QOS_GENERIC_ERROR = 11015;
+pub const WSA_QOS_ESERVICETYPE = 11016;
+pub const WSA_QOS_EFLOWSPEC = 11017;
+pub const WSA_QOS_EPROVSPECBUF = 11018;
+pub const WSA_QOS_EFILTERSTYLE = 11019;
+pub const WSA_QOS_EFILTERTYPE = 11020;
+pub const WSA_QOS_EFILTERCOUNT = 11021;
+pub const WSA_QOS_EOBJLENGTH = 11022;
+pub const WSA_QOS_EFLOWCOUNT = 11023;
+pub const WSA_QOS_EUNKOWNPSOBJ = 11024;
+pub const WSA_QOS_EPOLICYOBJ = 11025;
+pub const WSA_QOS_EFLOWDESC = 11026;
+pub const WSA_QOS_EPSFLOWSPEC = 11027;
+pub const WSA_QOS_EPSFILTERSPEC = 11028;
+pub const WSA_QOS_ESDMODEOBJ = 11029;
+pub const WSA_QOS_ESHAPERATEOBJ = 11030;
+pub const WSA_QOS_RESERVED_PETYPE = 11031;
+
+pub extern "ws2_32" stdcallcc fn WSAGetLastError() c_int;
+pub extern "ws2_32" stdcallcc fn WSASocketA(
+    af: c_int,
+    type: c_int,
+    protocol: c_int,
+    lpProtocolInfo: ?*WSAPROTOCOL_INFOA,
+    g: GROUP,
+    dwFlags: DWORD,
+) SOCKET;
+pub extern "ws2_32" stdcallcc fn WSASocketW(
+    af: c_int,
+    type: c_int,
+    protocol: c_int,
+    lpProtocolInfo: ?*WSAPROTOCOL_INFOW,
+    g: GROUP,
+    dwFlags: DWORD,
+) SOCKET;