diff --git a/README.md b/README.md
new file mode 100644
index 0000000..52bb0eb
--- /dev/null
+++ b/README.md
@@ -0,0 +1,13 @@
+# xpmgr
+Command line interface for Windows XP license management, inspired by Microsoft's "slmgr".
+
+## Usage
+`--GetProductID`: Gets the product ID (ex: `76477-755-3803223-21229`).
+
+`--SetProductKey`: Sets the product key.
+
+`--GetInstallationID`: Gets an Installation ID with **no dashes** (ex: `253286028742154311079061239762245184619981623171292574`). 
+
+`--SetConfirmationID`: Sets a Confirmation ID.
+
+Make sure you do commands right, since, as of now, there's no checking to make sure it's correct or not!