diff --git a/CHANGELOG b/CHANGELOG
index 8b7cf678a..bc065fbf8 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -3,6 +3,18 @@ This is the changelog file for the POCO C++ Libraries.
 Release 1.9.1 (2019-06-24)
 ==========================
 
+- Added support for building with different OpenSSL distributions on Windows.
+  See the POCO_EXTERNAL_OPENSSL macro defined in Foundation/include/Poco/Config.h
+  for options.
+- Added Poco::Net::HTTPClientSession::flushRequest()
+- Added Poco::Net::WebSocket::setMaxPayloadSize() and Poco::Net::WebSocket::getMaxPayloadSize()
+  to specify a maximum acceptable payload size for Poco::Net::WebSocket::receiveFrame().
+- Redis: added support for additional commands (exists, expire, ping, multi, exec, discard)
+- Redis: added Poco::Redis::Client::isConnected()
+- Upgraded bundled PCRE to version 8.43
+- Upgraded bundled SQLite to version 3.28.0
+- Added project/solution files for Visual Studio 2019
+- Fixed Visual Studio project files (version information from DLLVersion.rc not included in DLLs)
 - fixed GH #2220: Encoding/DoubleByteEncoding.cpp fails to compile with VS2008 and _DEBUG
 - fixed GH #2277: SQLite null pointer dereference occurs when exception is being thrown
 - fixed GH #2313: PollSet behaves differently on windows
@@ -15,21 +27,11 @@ Release 1.9.1 (2019-06-24)
 - fixed GH #2549: Fix keepAlive in http client session
 - fixed GH #2570: DialogSocket: receiveStatusMessage() - line length limit applies to entire multi-line message
 - fixed GH #2583: Crypto library does not build with OpenSSL 1.0.0
-- fixed GH #2583: Crypto library does not build with OpenSSL 1.0.0 (backport)
 - fixed GH #2655: MongoDB Binary element to string - bug
 - fixed GH #2661: Poco::Zip::ZipArchive cannot load new tomcat.zip file
 - fixed GH #2700: Invalid read of memory in Poco::Environment::set which may cause crashes.
 - fixed GH #2712: File_WIN32.cpp(168): error C2065: “_upath”:Undeclared identifier
-- Added support for building with different OpenSSL distributions on Windows.
-  See the POCO_EXTERNAL_OPENSSL macro defined in Foundation/include/Poco/Config.h
-  for options.
-- Added Poco::Net::HTTPClientSession::flushRequest()
-- Added Poco::Net::WebSocket::setMaxPayloadSize() and Poco::Net::WebSocket::getMaxPayloadSize()
-  to specify a maximum acceptable payload size for Poco::Net::WebSocket::receiveFrame().
-- Redis: added support for additional commands (exists, expire, ping, multi, exec, discard)
-- Redis: added Poco::Redis::Client::isConnected()
-- Upgraded bundled PCRE to version 8.43
-- Upgraded bundled SQLite to version 3.28.0
+- fixed GH #2723: Access violation when trying to decompress .zip file with unsupported compression method.
 
 
 Release 1.9.0 (2018-03-07)
diff --git a/Foundation/include/Poco/Platform.h b/Foundation/include/Poco/Platform.h
index b8803f958..799db417e 100644
--- a/Foundation/include/Poco/Platform.h
+++ b/Foundation/include/Poco/Platform.h
@@ -134,6 +134,7 @@
 #define POCO_ARCH_NIOS2   0x0e
 #define POCO_ARCH_AARCH64 0x0f
 #define POCO_ARCH_ARM64   0x0f // same as POCO_ARCH_AARCH64
+#define POCO_ARCH_RISCV64 0x10
 
 
 #if defined(__ALPHA) || defined(__alpha) || defined(__alpha__) || defined(_M_ALPHA)
@@ -224,13 +225,16 @@
 #elif defined(__AARCH64EB__)
 	#define POCO_ARCH POCO_ARCH_AARCH64
 	#define POCO_ARCH_BIG_ENDIAN 1
+#elif defined(__riscv) && (__riscv_xlen == 64)
+	#define POCO_ARCH POCO_ARCH_RISCV64
+	#define POCO_ARCH_LITTLE_ENDIAN 1
 #endif
 
 
-#if defined(_MSC_VER)
-	#define POCO_COMPILER_MSVC
-#elif defined(__clang__)
+#if defined(__clang__)
 	#define POCO_COMPILER_CLANG
+#elif defined(_MSC_VER)
+	#define POCO_COMPILER_MSVC
 #elif defined (__GNUC__)
 	#define POCO_COMPILER_GCC
 #elif defined (__MINGW32__) || defined (__MINGW64__)
diff --git a/Zip/include/Poco/Zip/ZipLocalFileHeader.h b/Zip/include/Poco/Zip/ZipLocalFileHeader.h
index 00741909c..48b07cdfb 100644
--- a/Zip/include/Poco/Zip/ZipLocalFileHeader.h
+++ b/Zip/include/Poco/Zip/ZipLocalFileHeader.h
@@ -85,6 +85,8 @@ public:
 
 	bool isEncrypted() const;
 
+	bool hasSupportedCompressionMethod() const;
+
 	const Poco::DateTime& lastModifiedAt() const;
 
 	Poco::UInt32 getCRC() const;
@@ -367,6 +369,13 @@ inline bool ZipLocalFileHeader::isEncrypted() const
 }
 
 
+inline bool ZipLocalFileHeader::hasSupportedCompressionMethod() const
+{
+	ZipCommon::CompressionMethod method = getCompressionMethod();
+	return method == ZipCommon::CM_DEFLATE || method == ZipCommon::CM_STORE;
+}
+
+
 inline void ZipLocalFileHeader::setEncryption(bool val)
 {
 	if (val)
diff --git a/Zip/src/Decompress.cpp b/Zip/src/Decompress.cpp
index 93a2df912..8d3a60985 100644
--- a/Zip/src/Decompress.cpp
+++ b/Zip/src/Decompress.cpp
@@ -22,6 +22,7 @@
 #include "Poco/StreamCopier.h"
 #include "Poco/Delegate.h"
 #include "Poco/FileStream.h"
+#include "Poco/Format.h"
 
 
 namespace Poco {
@@ -107,7 +108,14 @@ bool Decompress::handleZipEntry(std::istream& zipStream, const ZipLocalFileHeade
 		}
 
 		if (!ZipCommon::isValidPath(fileName))
+		{
 			throw ZipException("Illegal entry name", fileName);
+		}
+
+		if (!hdr.hasSupportedCompressionMethod())
+		{
+			throw ZipException(Poco::format("Unsupported compression method (%d)", static_cast<int>(hdr.getCompressionMethod())), fileName);
+		}
 
 		Poco::Path file(fileName);
 		file.makeFile();
diff --git a/Zip/src/ZipStream.cpp b/Zip/src/ZipStream.cpp
index cc2c192e6..04acb2118 100644
--- a/Zip/src/ZipStream.cpp
+++ b/Zip/src/ZipStream.cpp
@@ -21,6 +21,7 @@
 #include "Poco/Exception.h"
 #include "Poco/InflatingStream.h"
 #include "Poco/DeflatingStream.h"
+#include "Poco/Format.h"
 #if defined(POCO_UNBUNDLED)
 #include <zlib.h>
 #else
@@ -80,7 +81,6 @@ ZipStreamBuf::ZipStreamBuf(std::istream& istr, const ZipLocalFileHeader& fileEnt
 			_ptrBuf = new PartialInputStream(istr, start, end, reposition);
 		}
 	}
-	else throw Poco::NotImplementedException("Unsupported compression method");
 }
 
 
@@ -299,6 +299,10 @@ ZipStreamBuf* ZipIOS::rdbuf()
 
 ZipInputStream::ZipInputStream(std::istream& istr, const ZipLocalFileHeader& fileEntry, bool reposition): ZipIOS(istr, fileEntry, reposition), std::istream(&_buf)
 {
+	if (!fileEntry.hasSupportedCompressionMethod())
+	{
+		throw ZipException(Poco::format("Unsupported compression method (%d)", static_cast<int>(fileEntry.getCompressionMethod())), fileEntry.getFileName());
+	}
 }
 
 
diff --git a/build_vs160.cmd b/build_vs160.cmd
new file mode 100644
index 000000000..6a9bb89eb
--- /dev/null
+++ b/build_vs160.cmd
@@ -0,0 +1,2 @@
+@echo off
+buildwin 160 build shared both Win32 samples tests devenv
diff --git a/buildwin.cmd b/buildwin.cmd
index 5710ae229..4b0f1bd5a 100644
--- a/buildwin.cmd
+++ b/buildwin.cmd
@@ -5,9 +5,9 @@ rem
 rem buildwin.cmd
 rem
 rem POCO C++ Libraries command-line build script
-rem for MS Visual Studio 2008 to 2013
+rem for MS Visual Studio 2008 to 2019
 rem
-rem Copyright (c) 2006-2017 by Applied Informatics Software Engineering GmbH
+rem Copyright (c) 2006-2019 by Applied Informatics Software Engineering GmbH
 rem and Contributors.
 rem
 rem Original version by Aleksandar Fabijanic.
@@ -16,7 +16,7 @@ rem
 rem Usage:
 rem ------
 rem buildwin VS_VERSION [ACTION] [LINKMODE] [CONFIGURATION] [PLATFORM] [SAMPLES] [TESTS] [TOOL]
-rem VS_VERSION:    90|100|110|120|140|150
+rem VS_VERSION:    90|100|110|120|140|150|160
 rem ACTION:        build|rebuild|clean
 rem LINKMODE:      static_mt|static_md|shared|all
 rem CONFIGURATION: release|debug|both
@@ -44,13 +44,17 @@ set LIB=%LIB%;%MYSQL_LIB%
 set POCO_BASE=%CD%
 set PATH=%POCO_BASE%\bin64;%POCO_BASE%\bin;%PATH%
 
-rem VS_VERSION {90 | 100 | 110 | 120 | 140 | 150}
+rem VS_VERSION {90 | 100 | 110 | 120 | 140 | 150 | 160}
 if "%1"=="" goto usage
 set VS_VERSION=vs%1
-if %VS_VERSION%==vs150 (
+if %VS_VERSION%==vs160 (
   set VS_VARSALL=..\..\VC\Auxiliary\Build\vcvarsall.bat
 ) else (
-  set VS_VARSALL=..\..\VC\vcvarsall.bat
+  if %VS_VERSION%==vs150 (
+    set VS_VARSALL=..\..\VC\Auxiliary\Build\vcvarsall.bat
+  ) else (
+    set VS_VARSALL=..\..\VC\vcvarsall.bat
+  )
 )
 rem PLATFORM [Win32|x64|WinCE|WEC2013]
 set PLATFORM=%5
@@ -102,6 +106,14 @@ if not defined VCINSTALLDIR (
               ) else (
                 call "%VS150COMNTOOLS%%VS_VARSALL%" x86 8.1
               )
+            ) else (
+              if %VS_VERSION%==vs160 (
+                if %PLATFORM%==x64 (
+                  call "%VS160COMNTOOLS%%VS_VARSALL%" x86_amd64 8.1
+                ) else (
+                  call "%VS160COMNTOOLS%%VS_VARSALL%" x86 8.1
+                )
+              )
             )
           )
         )
@@ -123,6 +135,7 @@ if %VS_VERSION%==vs110 (set VCPROJ_EXT=vcxproj)
 if %VS_VERSION%==vs120 (set VCPROJ_EXT=vcxproj)
 if %VS_VERSION%==vs140 (set VCPROJ_EXT=vcxproj)
 if %VS_VERSION%==vs150 (set VCPROJ_EXT=vcxproj)
+if %VS_VERSION%==vs160 (set VCPROJ_EXT=vcxproj)
 
 if "%8"=="" goto use_devenv
 set BUILD_TOOL=%8
@@ -134,6 +147,7 @@ if "%VS_VERSION%"=="vs110" (set BUILD_TOOL=msbuild)
 if "%VS_VERSION%"=="vs120" (set BUILD_TOOL=msbuild)
 if "%VS_VERSION%"=="vs140" (set BUILD_TOOL=msbuild)
 if "%VS_VERSION%"=="vs150" (set BUILD_TOOL=msbuild)
+if "%VS_VERSION%"=="vs160" (set BUILD_TOOL=msbuild)
 :use_custom
 if not "%BUILD_TOOL%"=="msbuild" (set USEENV=/useenv)
 if "%BUILD_TOOL%"=="msbuild" (
@@ -150,6 +164,7 @@ if "%VS_VERSION%"=="vs110" (goto msbuildok)
 if "%VS_VERSION%"=="vs120" (goto msbuildok)
 if "%VS_VERSION%"=="vs140" (goto msbuildok)
 if "%VS_VERSION%"=="vs150" (goto msbuildok)
+if "%VS_VERSION%"=="vs160" (goto msbuildok)
 if "%BUILD_TOOL%"=="msbuild" (
   echo "Cannot use msbuild with Visual Studio 2008 or earlier."
   exit /b 2
@@ -194,6 +209,7 @@ if %VS_VERSION%==vs110 (set EXTRASW=/m /p:VisualStudioVersion=11.0)
 if %VS_VERSION%==vs120 (set EXTRASW=/m /p:VisualStudioVersion=12.0)
 if %VS_VERSION%==vs140 (set EXTRASW=/m /p:VisualStudioVersion=14.0)
 if %VS_VERSION%==vs150 (set EXTRASW=/m /p:VisualStudioVersion=15.0)
+if %VS_VERSION%==vs160 (set EXTRASW=/m /p:VisualStudioVersion=16.0)
 )
 
 rem SAMPLES [samples|nosamples]
diff --git a/buildwin.ps1 b/buildwin.ps1
index a08aea3ff..dcc6ee732 100644
--- a/buildwin.ps1
+++ b/buildwin.ps1
@@ -4,7 +4,7 @@
 # Usage:
 # ------
 # buildwin.ps1 [-poco_base    dir]
-#              [-vs_version   150 | 140 | 120 | 110 | 100 | 90]
+#              [-vs_version   160 | 150 | 140 | 120 | 110 | 100 | 90]
 #              [-action       build | rebuild | clean]
 #              [-linkmode     shared | static_mt | static_md | all]
 #              [-config       release | debug | both]
@@ -23,7 +23,7 @@ Param
   [string] $poco_base,
 
   [Parameter()]
-  [ValidateSet(90, 100, 110, 120, 140, 150)]
+  [ValidateSet(90, 100, 110, 120, 140, 150, 160)]
   [int] $vs_version,
 
   [Parameter()]
@@ -78,7 +78,8 @@ function Set-Environment
 
   if ($vs_version -eq 0)
   {
-    if     ($Env:VS150COMNTOOLS -ne '') { $script:vs_version = 150 }
+    if     ($Env:VS160COMNTOOLS -ne '') { $script:vs_version = 160 }
+    elseif ($Env:VS150COMNTOOLS -ne '') { $script:vs_version = 150 }
     elseif ($Env:VS140COMNTOOLS -ne '') { $script:vs_version = 140 }
     elseif ($Env:VS120COMNTOOLS -ne '') { $script:vs_version = 120 }
     elseif ($Env:VS110COMNTOOLS -ne '') { $script:vs_version = 110 }
@@ -120,7 +121,12 @@ function Set-Environment
   $CommandArg = ''
   if ($platform -eq 'x64') { $CommandArg = "amd64" }
   else                     { $CommandArg = "x86" }
-  if ($vs_version -ge 150)
+  if ($vs_version -ge 160)
+  {
+    $Command = "$($vsdir)\..\..\VC\Auxiliary\Build\vcvarsall.bat"
+    $script:msbuild_exe = "$($vsdir)\..\..\MSBuild\Current\Bin\MSBuild.exe"
+  }
+  elseif ($vs_version -ge 150)
   {
     $Command = "$($vsdir)\..\..\VC\Auxiliary\Build\vcvarsall.bat"
     $script:msbuild_exe = "$($vsdir)\..\..\MSBuild\15.0\Bin\MSBuild.exe"
@@ -149,7 +155,7 @@ function Process-Input
     Write-Host 'Usage:'
     Write-Host '------'
     Write-Host 'buildwin.ps1 [-poco_base    dir]'
-    Write-Host '             [-vs_version   150 | 140 | 120 | 110 | 100 | 90]'
+    Write-Host '             [-vs_version   160 | 150 | 140 | 120 | 110 | 100 | 90]'
     Write-Host '             [-action       build | rebuild | clean]'
     Write-Host '             [-linkmode     shared | static_mt | static_md | all]'
     Write-Host '             [-config       release | debug | both]'