diff --git a/Contrib/Makensisw/jnetlib/asyncdns.cpp b/Contrib/Makensisw/jnetlib/asyncdns.cpp
index cf8b7c27..4789bdac 100644
--- a/Contrib/Makensisw/jnetlib/asyncdns.cpp
+++ b/Contrib/Makensisw/jnetlib/asyncdns.cpp
@@ -30,7 +30,7 @@ JNL_AsyncDNS::~JNL_AsyncDNS()
   }
 }
 
-unsigned long WINAPI JNL_AsyncDNS::_threadfunc(LPVOID _d)
+DWORD WINAPI JNL_AsyncDNS::_threadfunc(LPVOID _d)
 {
   JNL_AsyncDNS *_this=(JNL_AsyncDNS*)_d;
   int nowinsock=JNL::open_socketlib();
diff --git a/Contrib/Makensisw/jnetlib/asyncdns.h b/Contrib/Makensisw/jnetlib/asyncdns.h
index 5aa16271..a8bbb466 100644
--- a/Contrib/Makensisw/jnetlib/asyncdns.h
+++ b/Contrib/Makensisw/jnetlib/asyncdns.h
@@ -31,7 +31,7 @@ private:
 
   volatile int m_thread_kill;
   HANDLE m_thread;
-  static unsigned long WINAPI _threadfunc(LPVOID _d);
+  static DWORD WINAPI _threadfunc(LPVOID _d);
 
 };
 
diff --git a/Contrib/zip2exe/main.cpp b/Contrib/zip2exe/main.cpp
index e934c0dc..3f266c8b 100644
--- a/Contrib/zip2exe/main.cpp
+++ b/Contrib/zip2exe/main.cpp
@@ -412,9 +412,9 @@ DWORD WINAPI ThreadProc(LPVOID p) // thread that will start & monitor wwwinamp
     return 1;
   }
 
-  unsigned long exit=0;  //process exit code
-  unsigned long bread;   //bytes read
-  unsigned long avail;   //bytes available
+  DWORD exit=0;  //process exit code
+  DWORD bread;   //bytes read
+  DWORD avail;   //bytes available
 
   memset(buf,0,sizeof(buf));
   while (1)      //main program loop