diff --git a/quickjs-libc.c b/quickjs-libc.c
index ca8e359..d116b93 100644
--- a/quickjs-libc.c
+++ b/quickjs-libc.c
@@ -484,8 +484,50 @@ typedef JSModuleDef *(JSInitModuleFunc)(JSContext *ctx,
 static JSModuleDef *js_module_loader_so(JSContext *ctx,
                                         const char *module_name)
 {
-    JS_ThrowReferenceError(ctx, "shared library modules are not supported yet");
-    return NULL;
+    JSModuleDef *m;
+    HANDLE hd;
+    JSInitModuleFunc *init;
+    char *filename;
+
+    if (!strchr(module_name, '/')) {
+        /* must add a '/' so that the DLL is not searched in the
+           system library paths */
+        filename = js_malloc(ctx, strlen(module_name) + 2 + 1);
+        if (!filename)
+            return NULL;
+        strcpy(filename, "./");
+        strcpy(filename + 2, module_name);
+    } else {
+        filename = (char *)module_name;
+    }
+
+    /* C module */
+    hd = LoadLibrary(filename);
+    if (filename != module_name)
+        js_free(ctx, filename);
+    if (!hd) {
+        JS_ThrowReferenceError(ctx, "could not load module filename '%s'('%s') as shared library",
+                               module_name,filename);
+        goto fail;
+    }
+
+    init = (JSInitModuleFunc*)GetProcAddress(hd,"js_init_module");
+    if (!init) {
+        JS_ThrowReferenceError(ctx, "could not load module filename '%s': js_init_module not found",
+                               module_name);
+        goto fail;
+    }
+
+    m = init(ctx, module_name);
+    if (!m) {
+        JS_ThrowReferenceError(ctx, "could not load module filename '%s': initialization error",
+                               module_name);
+    fail:
+        if (hd)
+            FreeLibrary(hd);
+        return NULL;
+    }
+    return m;
 }
 #else
 static JSModuleDef *js_module_loader_so(JSContext *ctx,
@@ -513,15 +555,13 @@ static JSModuleDef *js_module_loader_so(JSContext *ctx,
     if (filename != module_name)
         js_free(ctx, filename);
     if (!hd) {
-        JS_ThrowReferenceError(ctx, "could not load module filename '%s' as shared library",
-                               module_name);
-        goto fail;
+        goto dlerror;
     }
 
     init = dlsym(hd, "js_init_module");
     if (!init) {
-        JS_ThrowReferenceError(ctx, "could not load module filename '%s': js_init_module not found",
-                               module_name);
+        dlerror:
+        JS_ThrowReferenceError(ctx, "could not load module filename '%s': %s", module_name, dlerror());
         goto fail;
     }
 
@@ -660,7 +700,13 @@ JSModuleDef *js_module_loader(JSContext *ctx,
 {
     JSModuleDef *m;
 
-    if (has_suffix(module_name, ".so")) {
+    if (
+    #if !defined(_WIN32)
+        has_suffix(module_name, ".so")
+    #else
+        has_suffix(module_name, ".dll")
+    #endif
+    ) {
         m = js_module_loader_so(ctx, module_name);
     } else {
         size_t buf_len;
diff --git a/quickjs.c b/quickjs.c
index 475232c..89269f2 100644
--- a/quickjs.c
+++ b/quickjs.c
@@ -3795,6 +3795,20 @@ static JSValue string_buffer_end(StringBuffer *s)
     return JS_MKPTR(JS_TAG_STRING, str);
 }
 
+JSValue JS_NewStringWLen(JSContext *ctx, size_t buf_len)
+{
+    JSString *str;
+    if (buf_len <= 0) {
+        return JS_AtomToString(ctx, JS_ATOM_empty_string);
+    }
+    str = js_alloc_string_rt(ctx->rt, buf_len, 0);
+    if (unlikely(!str)){
+        JS_ThrowOutOfMemory(ctx);
+        return JS_EXCEPTION;
+    }
+    memset(str->u.str8, 0, buf_len+1);
+    return JS_MKPTR(JS_TAG_STRING, str);
+}
 /* create a string from a UTF-8 buffer */
 JSValue JS_NewStringLen(JSContext *ctx, const char *buf, size_t buf_len)
 {
@@ -3894,6 +3908,18 @@ JSValue JS_NewAtomString(JSContext *ctx, const char *str)
     return val;
 }
 
+uint8_t *JS_ToCStringLenRaw(JSContext *ctx, size_t *plen, JSValueConst val)
+{
+    if (JS_VALUE_GET_TAG(val) != JS_TAG_STRING)
+    {
+        if(plen) *plen = 0;
+        return NULL;
+    }
+    JSString *str = JS_VALUE_GET_STRING(val);
+    if(plen) *plen = str->len;
+    return str->u.str8;
+}
+
 /* return (NULL, 0) if exception. */
 /* return pointer into a JSString with a live ref_count */
 /* cesu8 determines if non-BMP1 codepoints are encoded as 1 or 2 utf-8 sequences */
@@ -5214,7 +5240,7 @@ static int JS_SetObjectData(JSContext *ctx, JSValueConst obj, JSValue val)
     return -1;
 }
 
-JSValue JS_NewObjectClass(JSContext *ctx, int class_id)
+JSValue JS_NewObjectClass(JSContext *ctx, JSClassID class_id)
 {
     return JS_NewObjectProtoClass(ctx, ctx->class_proto[class_id], class_id);
 }
@@ -44282,11 +44308,10 @@ static uint64_t xorshift64star(uint64_t *pstate)
     return x * 0x2545F4914F6CDD1D;
 }
 
+static int64_t date_now(void);
 static void js_random_init(JSContext *ctx)
 {
-    struct timeval tv;
-    gettimeofday(&tv, NULL);
-    ctx->random_state = ((int64_t)tv.tv_sec * 1000000) + tv.tv_usec;
+    ctx->random_state = date_now();
     /* the state must be non zero */
     if (ctx->random_state == 0)
         ctx->random_state = 1;
diff --git a/quickjs.h b/quickjs.h
index c92afbc..64cb7d6 100644
--- a/quickjs.h
+++ b/quickjs.h
@@ -732,6 +732,7 @@ int JS_ToBigInt64(JSContext *ctx, int64_t *pres, JSValueConst val);
 /* same as JS_ToInt64() but allow BigInt */
 int JS_ToInt64Ext(JSContext *ctx, int64_t *pres, JSValueConst val);
 
+JSValue JS_NewStringWLen(JSContext *ctx, size_t len);
 JSValue JS_NewStringLen(JSContext *ctx, const char *str1, size_t len1);
 static inline JSValue JS_NewString(JSContext *ctx, const char *str)
 {
@@ -740,6 +741,7 @@ static inline JSValue JS_NewString(JSContext *ctx, const char *str)
 JSValue JS_NewAtomString(JSContext *ctx, const char *str);
 JSValue JS_ToString(JSContext *ctx, JSValueConst val);
 JSValue JS_ToPropertyKey(JSContext *ctx, JSValueConst val);
+uint8_t *JS_ToCStringLenRaw(JSContext *ctx, size_t *plen, JSValueConst val1);
 const char *JS_ToCStringLen2(JSContext *ctx, size_t *plen, JSValueConst val1, JS_BOOL cesu8);
 static inline const char *JS_ToCStringLen(JSContext *ctx, size_t *plen, JSValueConst val1)
 {