--- a/xpcom/threads/nsProcessCommon.cpp
+++ b/xpcom/threads/nsProcessCommon.cpp
@@ -60,16 +60,21 @@
 #include "nsString.h"
 #include "nsLiteralString.h"
 #include "nsReadableUtils.h"
 #else
 #include <sys/types.h>
 #include <signal.h>
 #endif
 
+#ifdef WINCE
+#include <windows.h> // for MultiByteToWideChar
+#include "prmem.h"
+#endif
+
 //-------------------------------------------------------------------//
 // nsIProcess implementation
 //-------------------------------------------------------------------//
 NS_IMPL_ISUPPORTS1(nsProcess, nsIProcess)
 
 //Constructor
 nsProcess::nsProcess()
     : mExitValue(-1),