diff --git a/src-tauri/src/main.rs b/src-tauri/src/main.rs
index 243810e..dfebeae 100644
--- a/src-tauri/src/main.rs
+++ b/src-tauri/src/main.rs
@@ -37,10 +37,12 @@ fn main() {
       req_get,
       get_bg_file,
       base64_decode,
+      system_helpers::run_command,
       system_helpers::run_program,
       system_helpers::run_jar,
       system_helpers::open_in_browser,
       proxy::set_proxy_addr,
+      proxy::generate_ca_files,
       unzip::unzip,
       file_helpers::rename,
       file_helpers::dir_exists,
diff --git a/src-tauri/src/proxy.rs b/src-tauri/src/proxy.rs
index 76e5221..c5c9396 100644
--- a/src-tauri/src/proxy.rs
+++ b/src-tauri/src/proxy.rs
@@ -146,7 +146,8 @@ pub(crate) fn disconnect_from_proxy() {
  * Additionally installs the certificate and private key in the Root CA store.
  * Source: https://github.com/zu1k/good-mitm/raw/master/src/ca/gen.rs
  */
-pub(crate) fn generate_ca_files() {
+#[tauri::command]
+pub(crate) fn generate_ca_files(path: &str) {
   let mut params = CertificateParams::default();
   let mut details = DistinguishedName::new();
 
@@ -169,8 +170,23 @@ pub(crate) fn generate_ca_files() {
   // Create certificate.
   let cert = Certificate::from_params(params).unwrap();
   let cert_crt = cert.serialize_pem().unwrap();
+  let cert_path = format!("{}\\ca", path);
+
+  fs::create_dir(&cert_path).unwrap();
+
+  println!("{}", cert_crt);
   
-  // TODO: Save certificates.
+  match fs::write(format!("{}\\cert.crt", &cert_path), cert_crt) {
+    Ok(_) => println!("Wrote certificate to {}", &cert_path),
+    Err(e) => println!("Error writing certificate to {}: {}", &cert_path, e),
+  }
+
+  let private_key = cert.serialize_private_key_pem();
+
+  match fs::write(format!("{}\\private.key", &cert_path), private_key) {
+    Ok(_) => println!("Wrote private key to {}", &cert_path),
+    Err(e) => println!("Error writing private key to {}: {}", &cert_path, e),
+  }
   
   // Install certificate into the system's Root CA store.
   install_ca_files();
diff --git a/src-tauri/src/system_helpers.rs b/src-tauri/src/system_helpers.rs
index 3794ced..ed497e9 100644
--- a/src-tauri/src/system_helpers.rs
+++ b/src-tauri/src/system_helpers.rs
@@ -15,11 +15,11 @@ pub fn run_program(path: String) {
 }
 
 #[tauri::command]
-pub fn run_command(command: String) -> String {
+pub fn run_command(command: String) {
   // Run the specified command.
   let output = if cfg!(target_os = "windows") {
     Command::new("cmd")
-      .args(["/C", command])
+      .args(["/C", command.as_str()])
       .output()
       .expect("failed to execute process")
   } else {
@@ -29,8 +29,6 @@ pub fn run_command(command: String) -> String {
       .output()
       .expect("failed to execute process")
   };
-  
-  output.stdout.to_string()
 }
 
 #[tauri::command]