diff --git a/src/naming.rs b/src/naming.rs
new file mode 100644
index 000000000..38b514f86
--- /dev/null
+++ b/src/naming.rs
@@ -0,0 +1,40 @@
+mod license;
+use hbb_common::ResultType;
+use license::*;
+
+fn gen_name(lic: &License) -> ResultType<String> {
+    let tmp = serde_json::to_vec::<License>(lic)?;
+    let tmp = base64::encode_config(tmp, base64::URL_SAFE_NO_PAD);
+    let tmp: String = tmp.chars().rev().collect();
+    Ok(tmp)
+}
+
+fn main() {
+    let mut args = Vec::new();
+    let mut i = 0;
+    for arg in std::env::args() {
+        if i > 0 {
+            args.push(arg);
+        }
+        i += 1;
+    }
+    let api = if args.len() < 3 {
+        "".to_owned()
+    } else {
+        args[2].clone()
+    };
+    if args.len() >= 2 {
+        println!(
+            "rustdesk-licensed-{}.exe",
+            gen_name(&License {
+                key: args[0].clone(),
+                host: args[1].clone(),
+                api,
+            })
+            .unwrap()
+        );
+    }
+    if args.len() == 1 {
+        println!("{:?}", get_license_from_string(&args[0]));
+    }
+}