diff --git a/contrib/packaging/hgpackaging/py2exe.py b/contrib/packaging/hgpackaging/py2exe.py
--- a/contrib/packaging/hgpackaging/py2exe.py
+++ b/contrib/packaging/hgpackaging/py2exe.py
@@ -128,7 +128,7 @@
     print('building Mercurial')
     subprocess.run(
         [str(venv_python), 'setup.py',
-         'py2exe', '-b', '3' if vc_x64 else '2',
+         'py2exe',
          'build_doc', '--html'],
         cwd=str(source_dir),
         env=env,
diff --git a/contrib/packaging/inno/mercurial.iss b/contrib/packaging/inno/mercurial.iss
--- a/contrib/packaging/inno/mercurial.iss
+++ b/contrib/packaging/inno/mercurial.iss
@@ -71,10 +71,8 @@
 Source: contrib\win32\ReadMe.html; DestDir: {app}; Flags: isreadme
 Source: contrib\win32\postinstall.txt; DestDir: {app}; DestName: ReleaseNotes.txt
 Source: dist\hg.exe; DestDir: {app}; AfterInstall: Touch('{app}\hg.exe.local')
-#if ARCH == "x64"
 Source: dist\lib\*.dll; Destdir: {app}\lib
 Source: dist\lib\*.pyd; Destdir: {app}\lib
-#endif
 Source: dist\python*.dll; Destdir: {app}; Flags: skipifsourcedoesntexist
 Source: dist\msvc*.dll; DestDir: {app}; Flags: skipifsourcedoesntexist
 Source: dist\Microsoft.VC*.CRT.manifest; DestDir: {app}; Flags: skipifsourcedoesntexist
diff --git a/setup.py b/setup.py
--- a/setup.py
+++ b/setup.py
@@ -1364,6 +1364,7 @@
       distclass=hgdist,
       options={
           'py2exe': {
+              'bundle_files': 3,
               'dll_excludes': py2exedllexcludes,
               'excludes': py2exeexcludes,
               'packages': py2exepackages,