diff --git a/SConstruct b/SConstruct
index a96a94d..8b53af6 100644
--- a/SConstruct
+++ b/SConstruct
@@ -324,13 +324,21 @@ if sys.platform == 'win32':
   if aprstatic:
     apr_libs='apr-1.lib'
     apu_libs='aprutil-1.lib'
-    env.Append(LIBS=['shell32.lib', 'xml.lib'])
+    env.Append(LIBS=['shell32.lib'])
+    if debug:
+      env.Append(LIBS=['libexpatdMD.lib'])
+    else:
+      env.Append(LIBS=['libexpatMD.lib'])
   else:
     apr_libs='libapr-1.lib'
     apu_libs='libaprutil-1.lib'
 
   env.Append(LIBS=[apr_libs, apu_libs])
   if not env.get('SOURCE_LAYOUT', None):
+   if debug:
+    env.Append(LIBPATH=['$APR/lib', '$APU/lib'],
+               CPPPATH=['$APR/../include/apr-1', '$APU/../include/apr-1'])
+   else:
     env.Append(LIBPATH=['$APR/lib', '$APU/lib'],
                CPPPATH=['$APR/include/apr-1', '$APU/include/apr-1'])
   elif aprstatic:
@@ -341,8 +349,15 @@ if sys.platform == 'win32':
                CPPPATH=['$APR/include', '$APU/include'])
 
   # zlib
-  env.Append(LIBS=['zlib.lib'])
+  if debug:
+    env.Append(LIBS=[os.environ.get('ZLIB_BASENAME','zlib')+'d.lib'])
+  else:
+    env.Append(LIBS=[os.environ.get('ZLIB_BASENAME','zlib')+'.lib'])
   if not env.get('SOURCE_LAYOUT', None):
+   if debug:
+    env.Append(CPPPATH=['$ZLIB/../include'],
+               LIBPATH=['$ZLIB/lib'])
+   else:
     env.Append(CPPPATH=['$ZLIB/include'],
                LIBPATH=['$ZLIB/lib'])
   else:
@@ -351,6 +366,10 @@ if sys.platform == 'win32':
 
   # openssl
   if not env.get('SOURCE_LAYOUT', None):
+   if debug:
+    env.Append(CPPPATH=['$OPENSSL/../include/openssl'],
+               LIBPATH=['$OPENSSL/debug/lib'])
+   else:
     env.Append(CPPPATH=['$OPENSSL/include/openssl'],
                LIBPATH=['$OPENSSL/lib'])
   elif 0: # opensslstatic:
@@ -392,7 +411,10 @@ else:
     apr_libs = ''
     apu_libs = ''
 
-  env.Append(CPPPATH=['$OPENSSL/include'])
+  if debug:
+    env.Append(CPPPATH=['$OPENSSL/../include/openssl'])
+  else:
+    env.Append(CPPPATH=['$OPENSSL/include/openssl'])
   env.Append(LIBPATH=['$OPENSSL/lib'])