diff --git a/linebuf.c b/linebuf.c
index 75bde4c..3711f30 100644
--- a/linebuf.c
+++ b/linebuf.c
@@ -29,12 +29,17 @@
 #include <stdio.h>
 #include <sys/types.h>
 #include <errno.h>
-#include <sys/socket.h>
 #include <string.h>
 #include <stdlib.h>
 #include <unistd.h>
 #include <sys/time.h>
 
+#ifdef WIN32
+#include <winsock2.h>
+#else
+#include <sys/socket.h>
+#endif
+
 #include "linebuf.h"
 
 /*
diff --git a/zero-epwing/main.go b/zero-epwing/main.go
index 0101a58..5d29bd3 100644
--- a/zero-epwing/main.go
+++ b/zero-epwing/main.go
@@ -7,7 +7,6 @@ import (
 	"io/ioutil"
 	"log"
 	"os"
-	"path"
 
 	zig "github.com/FooSoft/zero-epwing-go"
 )
@@ -66,7 +65,7 @@ func main() {
 	)
 
 	flag.Usage = func() {
-		fmt.Fprintf(os.Stderr, "Usage: %s [options] path\n", path.Base(os.Args[0]))
+		fmt.Fprintf(os.Stderr, "Usage: zero-epwing [options] path\n")
 		fmt.Fprintf(os.Stderr, "Parameters:\n")
 		flag.PrintDefaults()
 	}
diff --git a/zig.go b/zig.go
index 57bb37a..3c8905c 100644
--- a/zig.go
+++ b/zig.go
@@ -10,7 +10,8 @@ import (
 )
 
 /*
-#cgo LDFLAGS: -lz
+#cgo linux LDFLAGS: -lz
+#cgo windows LDFLAGS: -lz -lws2_32
 #include "zig.h"
 */
 import "C"
@@ -74,7 +75,7 @@ func (c *Context) initialize() error {
 		return fmt.Errorf("eb_initialize_library failed with code: %s", formatError(errEb))
 	}
 
-	c.book = (*C.EB_Book)(C.calloc(1, C.size_t(unsafe.Sizeof(C.EB_Book{}))+8))
+	c.book = (*C.EB_Book)(C.calloc(1, C.size_t(unsafe.Sizeof(C.EB_Book{}))))
 	C.eb_initialize_book(c.book)
 
 	c.hookset = (*C.EB_Hookset)(C.calloc(1, C.size_t(unsafe.Sizeof(C.EB_Hookset{}))))