diff --git a/m_files/build_mex.m b/m_files/build_mex.m
index ce8daed..40b5316 100644
--- a/m_files/build_mex.m
+++ b/m_files/build_mex.m
@@ -91,7 +91,8 @@
                 build_args = {build_args{:}, ['-L', cell2mat(lib_dirs(n))]};               
             else
                 %don't use -L prefix in Windows Matlab to make compatible with more versions of Matlab
-                build_args = {build_args{:}, ['LIB#', cell2mat(lib_dirs(n)), ';$LIB']};
+                %build_args = {build_args{:}, ['LIB#', cell2mat(lib_dirs(n)), ';$LIB']};
+                build_args = {build_args{:}, ['-L', cell2mat(lib_dirs(n))]};
             end
         else
             print_flush('build_mex: Unable to find ''%s''\n', cell2mat(lib_dirs(n)));
diff --git a/m_files/compile_playrec_func.m b/m_files/compile_playrec_func.m
index 08ff31e..4c2b4b2 100644
--- a/m_files/compile_playrec_func.m
+++ b/m_files/compile_playrec_func.m
@@ -124,10 +124,10 @@
                         
     if ~isempty(sdk_path)
        api_include_dirs = [api_include_dirs,...
-                           resolve_paths(sdk_path, {'include', 'lib'})];
+                           resolve_paths(sdk_path, {'Include', 'Lib/x64'})];
        % Add library path, not using -L for backward compatibility,
        % apart from with octave that needs to use it
-       lib_dirs = [lib_dirs, resolve_paths(sdk_path, {'lib'})];
+       lib_dirs = [lib_dirs, resolve_paths(sdk_path, {'Lib/x64'})];
     end
 
     if use_asio
@@ -159,10 +159,10 @@
 
         % Add library path, not using -L for backward compatibility,
         % apart from with octave that needs to use it
-        if exist(resolve_paths(dsound_path, {'lib/x64'}),'dir')
-            lib_dirs = [lib_dirs, resolve_paths(dsound_path, {'lib/x64'})];
+        if exist(resolve_paths(dsound_path, {'Lib/x64'}),'dir')
+            lib_dirs = [lib_dirs, resolve_paths(dsound_path, {'Lib/x64'})];
         else
-            lib_dirs = [lib_dirs, resolve_paths(dsound_path, {'lib/x86'})];
+            lib_dirs = [lib_dirs, resolve_paths(dsound_path, {'Lib/x86'})];
         end
 
         compiler_flags = [compiler_flags, {'PA_USE_DS'}];