diff --git a/src/backend/src/lib.rs b/src/backend/src/lib.rs
index b304b53..d981911 100644
--- a/src/backend/src/lib.rs
+++ b/src/backend/src/lib.rs
@@ -185,8 +185,14 @@
 
     // Note: Tauri's sidecar() handles the library path (DLLs) if they are in the same folder 
     // as the sidecar binary in the App bundle.
+    // However, on Windows, adding the resource dir to PATH is safer for DLL discovery.
+    let res_dir = app_handle.path().resource_dir().unwrap_or_default();
+    let old_path = std::env::var("PATH").unwrap_or_default();
+    let new_path = format!("{};{}", res_dir.display(), old_path);
     
-    let (mut rx, child) = match sidecar.args(args).spawn() {
+    let sidecar = sidecar.args(args).env("PATH", new_path);
+
+    let (mut rx, _child) = match sidecar.spawn() {
         Ok(res) => res,
         Err(e) => {
             eprintln!("CRITICAL: Failed to spawn sidecar: {}", e);