diff --git a/.gitignore b/.gitignore
index 8028923871..201518bb12 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,3 +5,5 @@ build
 .project
 .settings
 bin
+/lib
+/distrib
diff --git a/classpath/java-io.cpp b/classpath/java-io.cpp
index 6a73080f37..5b723114ae 100644
--- a/classpath/java-io.cpp
+++ b/classpath/java-io.cpp
@@ -324,7 +324,19 @@ extern "C" JNIEXPORT jstring JNICALL
 Java_java_io_File_toAbsolutePath(JNIEnv* e UNUSED, jclass, jstring path)
 {
 #ifdef PLATFORM_WINDOWS
-  // todo
+  string_t chars = getChars(e, path);
+  if (chars) {
+    const unsigned BufferSize = MAX_PATH;
+    char_t buffer[BufferSize];
+    DWORD success = GetFullPathNameW(chars, BufferSize, buffer, 0);
+    releaseChars(e, path, chars);
+
+    if (success) {
+      return e->NewString
+        (reinterpret_cast<const jchar*>(buffer), wcslen(buffer));
+    }
+  }
+
   return path;
 #else
   jstring result = path;
diff --git a/classpath/java/net/URLStreamHandler.java b/classpath/java/net/URLStreamHandler.java
index 7beacae25e..2505408921 100644
--- a/classpath/java/net/URLStreamHandler.java
+++ b/classpath/java/net/URLStreamHandler.java
@@ -40,7 +40,7 @@ public abstract class URLStreamHandler {
           host = s.substring(0, colon);
           port = Integer.parseInt(s.substring(colon + 1, slash));
         }
-        s = s.substring(slash + 1);
+        s = s.substring(slash);
       }
     }
 
diff --git a/makefile b/makefile
index b83cfabad5..f72b091054 100755
--- a/makefile
+++ b/makefile
@@ -51,6 +51,8 @@ test-build = $(build)/test
 src = src
 classpath-src = classpath
 test = test
+win32 ?= $(root)/win32
+win64 ?= $(root)/win64
 
 classpath = avian
 
@@ -361,8 +363,8 @@ endif
 ifeq ($(platform),windows)
 	bootimage-cflags += -DTARGET_PLATFORM_WINDOWS
 
-	inc = "$(root)/win32/include"
-	lib = "$(root)/win32/lib"
+	inc = "$(win32)/include"
+	lib = "$(win32)/lib"
 
 	embed-prefix = c:/avian-embedded
 
@@ -411,8 +413,8 @@ ifeq ($(platform),windows)
 		ar = x86_64-w64-mingw32-ar
 		ranlib = x86_64-w64-mingw32-ranlib
 		strip = x86_64-w64-mingw32-strip
-		inc = "$(root)/win64/include"
-		lib = "$(root)/win64/lib"
+		inc = "$(win64)/include"
+		lib = "$(win64)/lib"
 	endif
 endif
 
@@ -469,7 +471,7 @@ build-ld := $(build-cc)
 
 ifdef msvc
 	windows-java-home := $(shell cygpath -m "$(JAVA_HOME)")
-	zlib := $(shell cygpath -m "$(root)/win32/msvc")
+	zlib := $(shell cygpath -m "$(win32)/msvc")
 	cxx = "$(msvc)/BIN/cl.exe"
 	cc = $(cxx)
 	ld = "$(msvc)/BIN/link.exe"
@@ -478,7 +480,8 @@ ifdef msvc
 		-DUSE_ATOMIC_OPERATIONS -DAVIAN_JAVA_HOME=\"$(javahome)\" \
 		-DAVIAN_EMBED_PREFIX=\"$(embed-prefix)\" \
 		-Fd$(build)/$(name).pdb -I"$(zlib)/include" -I$(src) -I"$(build)" \
-		-I"$(windows-java-home)/include" -I"$(windows-java-home)/include/win32"
+		-I"$(windows-java-home)/include" -I"$(windows-java-home)/include/win32" \
+		-DTARGET_BYTES_PER_WORD=$(pointer-size) -DTARGET_PLATFORM_WINDOWS
 	shared = -dll
 	lflags = -nologo -LIBPATH:"$(zlib)/lib" -DEFAULTLIB:ws2_32 \
 		-DEFAULTLIB:zlib -MANIFEST -debug
diff --git a/src/common.h b/src/common.h
index 7c60041449..8c762f6c70 100644
--- a/src/common.h
+++ b/src/common.h
@@ -56,10 +56,12 @@ typedef unsigned __int64 uint64_t;
 #  ifdef _M_IX86
 typedef int32_t intptr_t;
 typedef uint32_t uintptr_t;
+#    define UINT64_C(x) x##LL
 #    define ARCH_x86_32
 #  elif defined _M_X64
 typedef int64_t intptr_t;
 typedef uint64_t uintptr_t;
+#    define UINT64_C(x) x##L
 #    define ARCH_x86_64
 #  else
 #    error "unsupported architecture"
diff --git a/src/finder.h b/src/finder.h
index 55aa9e85ee..e784fe6e9a 100644
--- a/src/finder.h
+++ b/src/finder.h
@@ -173,7 +173,7 @@ class Finder {
   virtual void dispose() = 0;
 };
 
-Finder*
+JNIEXPORT Finder*
 makeFinder(System* s, Allocator* a, const char* path, const char* bootLibrary);
 
 Finder*
diff --git a/src/machine.h b/src/machine.h
index 12aca3bc45..96c853624f 100644
--- a/src/machine.h
+++ b/src/machine.h
@@ -3884,10 +3884,10 @@ errorLog(Thread* t)
 
 } // namespace vm
 
-void
+JNIEXPORT void
 vmPrintTrace(vm::Thread* t);
 
-void*
+JNIEXPORT void*
 vmAddressFromLine(vm::Thread* t, vm::object m, unsigned line);
 
 #endif//MACHINE_H
diff --git a/src/system.h b/src/system.h
index 0ec1b29eb5..897193d042 100644
--- a/src/system.h
+++ b/src/system.h
@@ -199,7 +199,7 @@ assert(System* s, bool v)
 
 #endif // not NDEBUG
 
-System*
+JNIEXPORT System*
 makeSystem(const char* crashDumpDirectory);
 
 } // namespace vm
diff --git a/test/UrlTest.java b/test/UrlTest.java
index 35281b367a..244d1ec45a 100644
--- a/test/UrlTest.java
+++ b/test/UrlTest.java
@@ -3,7 +3,7 @@ import java.net.URL;
 
 public class UrlTest {
   private static String query="var1=val1&var2=val2";
-  private static String path="testpath";
+  private static String path="/testpath";
   private static String domain="file://www.readytalk.com";
   private static String file=path + "?" + query;
   private static URL url;
@@ -15,7 +15,6 @@ public class UrlTest {
   private static void setupURL() throws MalformedURLException {
     StringBuilder builder = new StringBuilder();
     builder.append(domain);
-    builder.append("/");
     builder.append(file);
     url = new URL(builder.toString());
   }