diff --git a/src/LibHac/FsSrv/FileSystemProxyImpl.cs b/src/LibHac/FsSrv/FileSystemProxyImpl.cs
index 0299f61d..72d5f91c 100644
--- a/src/LibHac/FsSrv/FileSystemProxyImpl.cs
+++ b/src/LibHac/FsSrv/FileSystemProxyImpl.cs
@@ -55,9 +55,9 @@ internal struct FileSystemProxyImplGlobals
 }
 
 /// <summary>
-/// Dispatches calls to the main file system service interface.
+/// Dispatches calls to the various file system service objects.
 /// </summary>
-/// <remarks>Based on FS 12.1.0 (nnSdk 12.3.1)</remarks>
+/// <remarks>Based on FS 13.1.0 (nnSdk 13.4.0)</remarks>
 public class FileSystemProxyImpl : IFileSystemProxy, IFileSystemProxyForLoader
 {
     private FileSystemProxyCoreImpl _fsProxyCore;
@@ -251,6 +251,15 @@ public class FileSystemProxyImpl : IFileSystemProxy, IFileSystemProxyForLoader
         return ncaFsService.OpenDataStorageByDataId(ref outStorage, dataId, storageId);
     }
 
+    public Result OpenDataStorageByPath(ref SharedRef<IFileSystemSf> outFileSystem, in FspPath path,
+        FileSystemProxyType fsType)
+    {
+        Result rc = GetNcaFileSystemService(out NcaFileSystemService ncaFsService);
+        if (rc.IsFailure()) return rc;
+
+        return ncaFsService.OpenDataStorageByPath(ref outFileSystem, in path, fsType);
+    }
+
     public Result OpenPatchDataStorageByCurrentProcess(ref SharedRef<IStorageSf> outStorage)
     {
         return ResultFs.TargetNotFound.Log();
diff --git a/src/LibHac/FsSrv/NcaFileSystemService.cs b/src/LibHac/FsSrv/NcaFileSystemService.cs
index d067160e..c0f025db 100644
--- a/src/LibHac/FsSrv/NcaFileSystemService.cs
+++ b/src/LibHac/FsSrv/NcaFileSystemService.cs
@@ -178,6 +178,12 @@ internal class NcaFileSystemService : IRomFileSystemAccessFailureManager
         throw new NotImplementedException();
     }
 
+    public Result OpenDataStorageByPath(ref SharedRef<IFileSystemSf> outFileSystem, in FspPath path,
+        FileSystemProxyType fsType)
+    {
+        throw new NotImplementedException();
+    }
+
     private Result TryAcquireAddOnContentOpenCountSemaphore(ref UniqueRef<IUniqueLock> outSemaphoreLock)
     {
         throw new NotImplementedException();
diff --git a/src/LibHac/FsSrv/Sf/IFileSystemProxy.cs b/src/LibHac/FsSrv/Sf/IFileSystemProxy.cs
index 8a179974..c04a7be0 100644
--- a/src/LibHac/FsSrv/Sf/IFileSystemProxy.cs
+++ b/src/LibHac/FsSrv/Sf/IFileSystemProxy.cs
@@ -10,6 +10,10 @@ using IStorageSf = LibHac.FsSrv.Sf.IStorage;
 
 namespace LibHac.FsSrv.Sf;
 
+/// <summary>
+/// The interface most programs use to interact with the FS service.
+/// </summary>
+/// <remarks>Based on FS 13.1.0 (nnSdk 13.4.0)</remarks>
 public interface IFileSystemProxy : IDisposable
 {
     Result SetCurrentProcess(ulong processId);
@@ -74,6 +78,7 @@ public interface IFileSystemProxy : IDisposable
     Result OpenDataStorageByDataId(ref SharedRef<IStorageSf> outStorage, DataId dataId, StorageId storageId);
     Result OpenPatchDataStorageByCurrentProcess(ref SharedRef<IStorageSf> outStorage);
     Result OpenDataFileSystemWithProgramIndex(ref SharedRef<IFileSystemSf> outFileSystem, byte programIndex);
+    Result OpenDataStorageByPath(ref SharedRef<IFileSystemSf> outFileSystem, in FspPath path, FileSystemProxyType fsType);
     Result OpenDataStorageWithProgramIndex(ref SharedRef<IStorageSf> outStorage, byte programIndex);
     Result OpenDeviceOperator(ref SharedRef<IDeviceOperator> outDeviceOperator);
     Result OpenSdCardDetectionEventNotifier(ref SharedRef<IEventNotifier> outEventNotifier);