diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..9135270
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "portable_install/py7z"]
+	path = portable_install/py7z
+	url = https://github.com/rlbr/py7z.git
diff --git a/portable_install/py7z b/portable_install/py7z
new file mode 160000
index 0000000..f8cd5f7
--- /dev/null
+++ b/portable_install/py7z
@@ -0,0 +1 @@
+Subproject commit f8cd5f769b730725f7d3288250e793a4fdb3ea17