diff --git a/pywxdump/api/api.py b/pywxdump/api/api.py
index 2785ffd..efa04cc 100644
--- a/pywxdump/api/api.py
+++ b/pywxdump/api/api.py
@@ -13,6 +13,7 @@ import re
 import time
 import shutil
 
+import pythoncom
 from flask import Flask, request, render_template, g, Blueprint, send_file, make_response, session
 from pywxdump import analyzer, read_img_dat, read_audio, get_wechat_db, get_core_db
 from pywxdump.analyzer.export_chat import get_contact, get_room_user_list
@@ -669,6 +670,7 @@ def biasaddr():
     wxdbPath = request.json.get("wxdbPath", "")
     if not mobile or not name or not account:
         return ReJson(1002)
+    pythoncom.CoInitialize()
     rdata = BiasAddr(account, mobile, name, key, wxdbPath).run()
     return ReJson(0, str(rdata))
 
diff --git a/pywxdump/wx_info/get_bias_addr.py b/pywxdump/wx_info/get_bias_addr.py
index 1a33840..39a5250 100644
--- a/pywxdump/wx_info/get_bias_addr.py
+++ b/pywxdump/wx_info/get_bias_addr.py
@@ -158,7 +158,7 @@ class BiasAddr:
         name_bias = self.search_memory_value(self.name, self.module_name)
         account_bias = self.search_memory_value(self.account, self.module_name)
         key_bias = 0
-        key_bias = self.get_key_bias1()
+        key_bias = self.get_key_bias1() if key_bias <= 0 else key_bias
         key_bias = self.search_key(self.key) if key_bias <= 0 and self.key else key_bias
         key_bias = self.get_key_bias2(self.db_path) if key_bias <= 0 and self.db_path else key_bias