diff --git a/SOURCES/0001-Using-libnatspec-to-correctly-decode-non-ASCII.patch b/SOURCES/0001-Using-libnatspec-to-correctly-decode-non-ASCII.patch
new file mode 100644
index 0000000..ce3e10e
--- /dev/null
+++ b/SOURCES/0001-Using-libnatspec-to-correctly-decode-non-ASCII.patch
@@ -0,0 +1,104 @@
+From 0bb3986583a1daff2466c318473191d6cbd63adb Mon Sep 17 00:00:00 2001
+From: Sergey Cherevko <s.cherevko@msvsphere-os.ru>
+Date: Fri, 19 Jan 2024 16:35:06 +0300
+Subject: [PATCH] Using libnatspec to correctly decode non-ASCII filenames
+ zipped on Windows.
+
+---
+ CPP/7zip/Archive/Zip/ZipItem.cpp | 44 +++++++-------------------------
+ makefile.linux_amd64_asm         |  2 +-
+ makefile.machine                 |  2 +-
+ 3 files changed, 11 insertions(+), 37 deletions(-)
+
+diff --git a/CPP/7zip/Archive/Zip/ZipItem.cpp b/CPP/7zip/Archive/Zip/ZipItem.cpp
+index 12bc8ad..16a4dbe 100644
+--- a/CPP/7zip/Archive/Zip/ZipItem.cpp
++++ b/CPP/7zip/Archive/Zip/ZipItem.cpp
+@@ -1,5 +1,5 @@
+ // Archive/ZipItem.cpp
+-
++#include <natspec.h>
+ #include "StdAfx.h"
+ 
+ #include "../../../../C/CpuArch.h"
+@@ -208,43 +208,17 @@ void CItem::GetUnicodeString(UString &res, const AString &s, bool isComment, boo
+   bool isUtf8 = IsUtf8();
+   bool ignore_Utf8_Errors = true;
+   
+-  if (!isUtf8)
+-  {
+-    {
+-      const unsigned id = isComment ?
+-          NFileHeader::NExtraID::kIzUnicodeComment:
+-          NFileHeader::NExtraID::kIzUnicodeName;
+-      const CObjectVector<CExtraSubBlock> &subBlocks = GetMainExtra().SubBlocks;
+-      
+-      FOR_VECTOR (i, subBlocks)
+-      {
+-        const CExtraSubBlock &sb = subBlocks[i];
+-        if (sb.ID == id)
+-        {
+-          AString utf;
+-          if (sb.ExtractIzUnicode(CrcCalc(s, s.Len()), utf))
+-            if (ConvertUTF8ToUnicode(utf, res))
+-              return;
+-          break;
+-        }
+-      }
+-    }
+-    
+-    if (useSpecifiedCodePage)
+-      isUtf8 = (codePage == CP_UTF8);
+-    #ifdef _WIN32
+-    else if (GetHostOS() == NFileHeader::NHostOS::kUnix)
+-    {
+-      /* Some ZIP archives in Unix use UTF-8 encoding without Utf8 flag in header.
+-         We try to get name as UTF-8.
+-         Do we need to do it in POSIX version also? */
+-      isUtf8 = true;
+-      ignore_Utf8_Errors = false;
+-    }
+-    #endif
++  if (!isUtf8) {
++    const char *oem_charset = natspec_get_charset_by_locale(NATSPEC_DOSCS, "");
++    char *p = natspec_convert(s.Ptr(), NULL, oem_charset, 0);
++    AString utf = p;
++    free(p);
++    if (ConvertUTF8ToUnicode(utf, res))
++      return;
+   }
+   
+   
++  
+   if (isUtf8)
+     if (ConvertUTF8ToUnicode(s, res) || ignore_Utf8_Errors)
+       return;
+diff --git a/makefile.linux_amd64_asm b/makefile.linux_amd64_asm
+index 075c6a8..3de8ccf 100644
+--- a/makefile.linux_amd64_asm
++++ b/makefile.linux_amd64_asm
+@@ -19,7 +19,7 @@ ASM=yasm -f elf -m amd64 -Dx64
+ 
+ PRE_COMPILED_HEADER=StdAfx.h.gch
+ 
+-LOCAL_LIBS=-lpthread
++LOCAL_LIBS=-lpthread -lnatspec
+ LOCAL_LIBS_DLL=$(LOCAL_LIBS) -ldl
+ 
+ CPU=x64
+diff --git a/makefile.machine b/makefile.machine
+index 9e34c34..054edde 100644
+--- a/makefile.machine
++++ b/makefile.machine
+@@ -15,7 +15,7 @@ CC=gcc
+ CC_SHARED=-fPIC
+ LINK_SHARED=-fPIC -shared
+ 
+-LOCAL_LIBS=-lpthread
++LOCAL_LIBS=-lpthread -lnatspec
+ LOCAL_LIBS_DLL=$(LOCAL_LIBS) -ldl
+ 
+ OBJ_CRC32=$(OBJ_CRC32_C)
+-- 
+2.39.3
+
diff --git a/SPECS/p7zip.spec b/SPECS/p7zip.spec
index 138f55c..f70f1b9 100644
--- a/SPECS/p7zip.spec
+++ b/SPECS/p7zip.spec
@@ -7,7 +7,7 @@
 Summary: Very high compression ratio file archiver
 Name: p7zip
 Version: 16.02
-Release: 21%{?dist}
+Release: 21%{?dist}.inferit
 # Files under C/Compress/Lzma/ are dual LGPL or CPL
 License: LGPLv2 and (LGPLv2+ or CPL)
 URL: http://p7zip.sourceforge.net/
@@ -31,11 +31,14 @@ Patch11: 14-Fix-g++-warning.patch
 Patch12: gcc10-conversion.patch
 Patch13: 0001-fix-data-null-pointer.patch
 Patch14: 0001-fix-out-of-mem.patch
+#MSVSphere
+Patch100: 0001-Using-libnatspec-to-correctly-decode-non-ASCII.patch
 
 BuildRequires: make
 BuildRequires: gcc
 BuildRequires: gcc-c++
 BuildRequires: cmake
+BuildRequires: libnatspec-devel
 %if %{with gui}
 # for 7zG GUI
 %if 0%{?rhel} && 0%{?rhel} <= 7
@@ -180,6 +183,10 @@ make test
 
 
 %changelog
+* Fri Jan 19 2024 Sergey Cherevko <s.cherevko@msvsphere-os.ru> - 16.02-21.inferit
+- Using libnatspec to correctly decode non-ASCII filenames zipped on Windows.
+- Rebuilt for MSVSphere 9.3
+
 * Tue Jul 25 2023 Arkady L. Shane <ashejn@msvsphere.ru> - 16.02-21
 - Rebuilt for MSVSphere 9.2