diff --git a/framework/muxer/ffmpegMuxer/FfmpegMuxer.cpp b/framework/muxer/ffmpegMuxer/FfmpegMuxer.cpp
index 6218aacca..1d446a3f8 100644
--- a/framework/muxer/ffmpegMuxer/FfmpegMuxer.cpp
+++ b/framework/muxer/ffmpegMuxer/FfmpegMuxer.cpp
@@ -241,11 +241,13 @@ int FfmpegMuxer::close()
 
     if (mDestFormatContext->metadata) {
         av_dict_free(&mDestFormatContext->metadata);
+        mDestFormatContext->metadata = nullptr;
     }
 
     avio_flush(mDestFormatContext->pb);
     av_opt_free(mDestFormatContext->pb);
     av_free(mDestFormatContext->pb);
+    mDestFormatContext->pb = nullptr;
     avformat_free_context(mDestFormatContext);
     mDestFormatContext = nullptr;
 
diff --git a/framework/utils/af_string.cpp b/framework/utils/af_string.cpp
index 1c46857d1..f85c0543e 100644
--- a/framework/utils/af_string.cpp
+++ b/framework/utils/af_string.cpp
@@ -135,6 +135,12 @@ void c_make_absolute_url(char *buf, int size, const char *base, const char *rel)
         af_strlcpy(buf, rel, size);
         return;
     }
+#ifdef WIN32
+    if (strnlen_s(rel, 3) >= 3 && isalpha(rel[0]) && rel[1] == ':' && rel[2] == '/') {
+        af_strlcpy(buf, rel, size);
+        return;
+    }
+#endif
 
     if (base != buf) {
         af_strlcpy(buf, base, size);
diff --git a/framework/utils/file/FileCntl.cpp b/framework/utils/file/FileCntl.cpp
index 71a3a5067..e3f06180d 100644
--- a/framework/utils/file/FileCntl.cpp
+++ b/framework/utils/file/FileCntl.cpp
@@ -25,6 +25,9 @@ FileCntl::~FileCntl()
 
 void FileCntl::openFile()
 {
+#ifdef WIN32
+    _set_fmode(_O_BINARY);
+#endif // WIN32
     mFd = open(mFilePath.c_str(), O_RDWR | O_CREAT, 0666);
 }
 
@@ -41,8 +44,10 @@ int FileCntl::writeFile(uint8_t *buf, int size)
 
 void FileCntl::closeFile()
 {
-    close(mFd);
-    mFd = -1;
+    if (mFd >= 0) {
+        close(mFd);
+        mFd = -1;
+    }
 }
 
 
diff --git a/framework/utils/file/FileUtils.cpp b/framework/utils/file/FileUtils.cpp
index 63cb897b9..b498a62eb 100644
--- a/framework/utils/file/FileUtils.cpp
+++ b/framework/utils/file/FileUtils.cpp
@@ -6,6 +6,7 @@
 #ifdef _WIN32
     #include <io.h>
     #include <process.h>
+    #include <direct.h>
 #else
     #include <unistd.h>
 #endif
@@ -160,11 +161,7 @@ namespace Cicada {
         // make this one if parent has been made
 #ifdef _WIN32
         // http://msdn.microsoft.com/en-us/library/2fkk4dzw.aspx
-        //int rc = mkdir(pathname);
-        int rc = -1;
-//        BOOL rc = CreateDirectory("pathname", NULL);
-//        return rc ? FILE_TRUE : -1;
-        return -1;
+        int rc = _mkdir(pathname);
 #else
         //S_IRWXU|S_IRWXG|S_IRWXO = 511
         int rc = mkdir(pathname, 511);