diff --git a/db/mork/src/morkConfig.h b/db/mork/src/morkConfig.h
index d0e46fa8e5d..83aee914b1b 100644
--- a/db/mork/src/morkConfig.h
+++ b/db/mork/src/morkConfig.h
@@ -94,7 +94,13 @@
 #define MORK_FILETELL(file) ftell(file) 
 #define MORK_FILESEEK(file, where, how) fseek(file, where, how) 
 #define MORK_FILEREAD(outbuf, insize, file) fread(outbuf, 1, insize, file) 
+#if defined(MORK_WIN)
+void mork_fileflush(FILE * file);
+#define MORK_FILEFLUSH(file) mork_fileflush(file) 
+#else
 #define MORK_FILEFLUSH(file) fflush(file) 
+#endif /*MORK_WIN*/
+
 #if defined(MORK_OS2)
 FILE* mork_fileopen(const char* name, const char* mode);
 #define MORK_FILEOPEN(file, how) mork_fileopen(file, how) 
diff --git a/db/mork/src/morkFile.cpp b/db/mork/src/morkFile.cpp
index 79913cbd076..f8754f5ad95 100644
--- a/db/mork/src/morkFile.cpp
+++ b/db/mork/src/morkFile.cpp
@@ -56,6 +56,11 @@
 #include "morkFile.h"
 #endif
 
+#ifdef MORK_WIN
+#include "io.h"
+#include <windows.h>
+#endif
+
 // #define MORK_CONFIG_USE_ORKINFILE 1
  
 #ifdef MORK_CONFIG_USE_ORKINFILE
@@ -920,5 +925,22 @@ morkStdioFile::Steal(nsIMdbEnv* ev, nsIMdbFile* ioThief)
 }
 
 
+#if defined(MORK_WIN)
+
+void mork_fileflush(FILE * file)
+{
+  fflush(file);
+  OSVERSIONINFOA vi = { sizeof(OSVERSIONINFOA) };
+  if ((GetVersionExA(&vi) && vi.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS))
+  {
+    // Win9x/ME
+    int fd = fileno(file);
+    HANDLE fh = (HANDLE)_get_osfhandle(fd);
+    FlushFileBuffers(fh);
+  }
+}
+
+#endif /*MORK_WIN*/
+
 
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