diff --git a/source/concurrency/io/package.d b/source/concurrency/io/package.d
index ff8a644..d78a08a 100644
--- a/source/concurrency/io/package.d
+++ b/source/concurrency/io/package.d
@@ -7,7 +7,6 @@ import std.socket : socket_t;
 
 version (linux)
     alias IOContext = IOUringContext;
-else static assert(false, "No IOContext for platform");
 
 auto readAsync(socket_t fd, ubyte[] buffer, long offset = 0) @safe nothrow @nogc {
     return ReadAsyncSender(fd, buffer, offset);
diff --git a/source/concurrency/io/socket.d b/source/concurrency/io/socket.d
index 87d67b8..c9efff9 100644
--- a/source/concurrency/io/socket.d
+++ b/source/concurrency/io/socket.d
@@ -17,9 +17,14 @@ auto tcpSocket() @trusted {
     version(linux) {
         import core.sys.linux.sys.eventfd;
         enum SOCK_NONBLOCK = 0x800;
+        socket_t sock = cast(socket_t) socket(AF_INET, SOCK_STREAM | SOCK_NONBLOCK, 0);
+    } else version(Windows) {
+        socket_t sock = cast(socket_t) socket(AF_INET, SOCK_STREAM, 0);
+        uint nonblocking_long = 1;
+        if (ioctlsocket(sock, FIONBIO, &nonblocking_long) == SOCKET_ERROR)
+            throw new Exception("ioctlsocket failed");
     }
 
-    socket_t sock = cast(socket_t) socket(AF_INET, SOCK_STREAM | SOCK_NONBLOCK, 0);
     if (sock == -1)
         throw new Exception("socket");
 
@@ -48,7 +53,6 @@ auto listenTcp(string address = "", ushort port = 0, int backlog = 128) @trusted
 
     version(linux) {
         import core.sys.linux.sys.eventfd;
-        enum SOCK_NONBLOCK = 0x800;
     }
     import core.stdc.errno;
 
@@ -76,7 +80,7 @@ auto listenTcp(string address = "", ushort port = 0, int backlog = 128) @trusted
         throw new Exception("bind");
     }
 
-    if (core.sys.posix.sys.socket.listen(sock, backlog) == -1) {
+    if (listen(sock, backlog) == -1) {
         closeSocket(sock);
         throw new Exception("listen");
     }
@@ -86,9 +90,10 @@ auto listenTcp(string address = "", ushort port = 0, int backlog = 128) @trusted
 
 auto closeSocket(socket_t sock) @trusted {
     import core.sys.posix.unistd;
-    version(Windows)
+    version(Windows) {
+        import core.sys.windows.windows;
         closesocket(sock);
-    else
+    } else
         close(sock);
 }
 
diff --git a/source/concurrency/scheduler.d b/source/concurrency/scheduler.d
index 748f7a1..b851baf 100644
--- a/source/concurrency/scheduler.d
+++ b/source/concurrency/scheduler.d
@@ -19,7 +19,12 @@ enum isScheduler(T) = is(typeof(checkScheduler!T));
 
 struct Client {
     import std.socket : socket_t;
-    import core.sys.posix.sys.socket : sockaddr, socklen_t;
+    version(Windows) {
+        import core.sys.windows.windows : sockaddr, socklen_t;
+    } else version(Posix) {
+        import core.sys.posix.sys.socket : sockaddr, socklen_t;
+    }
+
     socket_t fd;
     sockaddr addr;
     socklen_t addrlen;
diff --git a/tests/ut/concurrency/io.d b/tests/ut/concurrency/io.d
index e182362..e54afcb 100644
--- a/tests/ut/concurrency/io.d
+++ b/tests/ut/concurrency/io.d
@@ -8,6 +8,8 @@ import concurrency.operations;
 import std.typecons : tuple;
 import core.time : msecs;
 
+version (linux):
+
 @safe
 @("Schedule.single")
 unittest {