diff --git a/core/archive/7zArchive.cpp b/core/archive/7zArchive.cpp
index 6b4fb689b..9a74502f5 100644
--- a/core/archive/7zArchive.cpp
+++ b/core/archive/7zArchive.cpp
@@ -33,25 +33,10 @@ bool SzArchive::Open(const char* path)
 
 	File_Close(&archiveStream.file);
 	File_Construct(&archiveStream.file);
-#ifdef USE_WINDOWS_FILE
-	nowide::wstackstring wpath;
-	if (!wpath.convert(path))
-		return false;
-#if (_WIN32_WINNT >= 0x0602 /*_WIN32_WINNT_WIN8*/)
-	archiveStream.file.handle = CreateFile2(wpath.c_str(),
-		GENERIC_READ, FILE_SHARE_READ, OPEN_EXISTING, NULL);
-#else
-	archiveStream.file.handle = CreateFileW(wpath.c_str(),
-			GENERIC_READ, FILE_SHARE_READ, NULL,
-			OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
-#endif
-	if (archiveStream.file.handle == INVALID_HANDLE_VALUE)
-		return false;
-#else
 	archiveStream.file.file = nowide::fopen(path, "rb");
 	if (archiveStream.file.file == nullptr)
 		return false;
-#endif
+
 	FileInStream_CreateVTable(&archiveStream);
 	LookToRead2_CreateVTable(&lookStream, 0);
 	lookStream.buf = (Byte *)ISzAlloc_Alloc(&g_Alloc, kInputBufSize);
diff --git a/core/deps/lzma/7zFile.h b/core/deps/lzma/7zFile.h
index 7e263bea1..ecf3d286c 100644
--- a/core/deps/lzma/7zFile.h
+++ b/core/deps/lzma/7zFile.h
@@ -1,83 +1,84 @@
-/* 7zFile.h -- File IO
-2017-04-03 : Igor Pavlov : Public domain */
-
-#ifndef __7Z_FILE_H
-#define __7Z_FILE_H
-
-#ifdef _WIN32
-#define USE_WINDOWS_FILE
-#endif
-
-#ifdef USE_WINDOWS_FILE
-#include <windows.h>
-#else
-#include <stdio.h>
-#endif
-
-#include "7zTypes.h"
-
-EXTERN_C_BEGIN
-
-/* ---------- File ---------- */
-
-typedef struct
-{
-  #ifdef USE_WINDOWS_FILE
-  HANDLE handle;
-  #else
-  FILE *file;
-  #endif
-} CSzFile;
-
-void File_Construct(CSzFile *p);
-#if !defined(UNDER_CE) || !defined(USE_WINDOWS_FILE)
-WRes InFile_Open(CSzFile *p, const char *name);
-WRes OutFile_Open(CSzFile *p, const char *name);
-#endif
-#ifdef USE_WINDOWS_FILE
-WRes InFile_OpenW(CSzFile *p, const WCHAR *name);
-WRes OutFile_OpenW(CSzFile *p, const WCHAR *name);
-#endif
-WRes File_Close(CSzFile *p);
-
-/* reads max(*size, remain file's size) bytes */
-WRes File_Read(CSzFile *p, void *data, size_t *size);
-
-/* writes *size bytes */
-WRes File_Write(CSzFile *p, const void *data, size_t *size);
-
-WRes File_Seek(CSzFile *p, Int64 *pos, ESzSeek origin);
-WRes File_GetLength(CSzFile *p, UInt64 *length);
-
-
-/* ---------- FileInStream ---------- */
-
-typedef struct
-{
-  ISeqInStream vt;
-  CSzFile file;
-} CFileSeqInStream;
-
-void FileSeqInStream_CreateVTable(CFileSeqInStream *p);
-
-
-typedef struct
-{
-  ISeekInStream vt;
-  CSzFile file;
-} CFileInStream;
-
-void FileInStream_CreateVTable(CFileInStream *p);
-
-
-typedef struct
-{
-  ISeqOutStream vt;
-  CSzFile file;
-} CFileOutStream;
-
-void FileOutStream_CreateVTable(CFileOutStream *p);
-
-EXTERN_C_END
-
-#endif
+/* 7zFile.h -- File IO
+2017-04-03 : Igor Pavlov : Public domain */
+
+#ifndef __7Z_FILE_H
+#define __7Z_FILE_H
+
+// Flycast handles wchar file path already
+//#ifdef _WIN32
+//#define USE_WINDOWS_FILE
+//#endif
+
+#ifdef USE_WINDOWS_FILE
+#include <windows.h>
+#else
+#include <stdio.h>
+#endif
+
+#include "7zTypes.h"
+
+EXTERN_C_BEGIN
+
+/* ---------- File ---------- */
+
+typedef struct
+{
+  #ifdef USE_WINDOWS_FILE
+  HANDLE handle;
+  #else
+  FILE *file;
+  #endif
+} CSzFile;
+
+void File_Construct(CSzFile *p);
+#if !defined(UNDER_CE) || !defined(USE_WINDOWS_FILE)
+WRes InFile_Open(CSzFile *p, const char *name);
+WRes OutFile_Open(CSzFile *p, const char *name);
+#endif
+#ifdef USE_WINDOWS_FILE
+WRes InFile_OpenW(CSzFile *p, const WCHAR *name);
+WRes OutFile_OpenW(CSzFile *p, const WCHAR *name);
+#endif
+WRes File_Close(CSzFile *p);
+
+/* reads max(*size, remain file's size) bytes */
+WRes File_Read(CSzFile *p, void *data, size_t *size);
+
+/* writes *size bytes */
+WRes File_Write(CSzFile *p, const void *data, size_t *size);
+
+WRes File_Seek(CSzFile *p, Int64 *pos, ESzSeek origin);
+WRes File_GetLength(CSzFile *p, UInt64 *length);
+
+
+/* ---------- FileInStream ---------- */
+
+typedef struct
+{
+  ISeqInStream vt;
+  CSzFile file;
+} CFileSeqInStream;
+
+void FileSeqInStream_CreateVTable(CFileSeqInStream *p);
+
+
+typedef struct
+{
+  ISeekInStream vt;
+  CSzFile file;
+} CFileInStream;
+
+void FileInStream_CreateVTable(CFileInStream *p);
+
+
+typedef struct
+{
+  ISeqOutStream vt;
+  CSzFile file;
+} CFileOutStream;
+
+void FileOutStream_CreateVTable(CFileOutStream *p);
+
+EXTERN_C_END
+
+#endif