new file mode 100644
--- /dev/null
+++ b/src/os/win32/ngx_sendv.c
@@ -0,0 +1,34 @@
+
+#include <ngx_core.h>
+#include <ngx_types.h>
+#include <ngx_errno.h>
+#include <ngx_connection.h>
+#include <ngx_log.h>
+#include <ngx_sendv.h>
+
+ssize_t ngx_sendv(ngx_connection_t *c, ngx_iovec_t *iovec, int n)
+{
+     int        rc;
+     size_t     sent;
+     ngx_err_t  err;
+
+     ngx_log_debug(c->log, "WSASend() start");
+
+     rc = WSASend(c->fd, iovec, n, &sent, 0, NULL, NULL);
+
+     ngx_log_debug(c->log, "WSASend() done");
+
+     if (rc == -1) {
+         err = ngx_socket_errno;
+
+         if (err == NGX_EAGAIN) {
+             ngx_log_error(NGX_LOG_INFO, c->log, err, "WSASend() eagain");
+             return NGX_AGAIN;
+         }
+
+         ngx_log_error(NGX_LOG_ERR, c->log, err, "WSASend() failed");
+         return NGX_ERROR;
+     }
+
+     return sent;
+}