diff --git a/CppUnit/include/Poco/CppUnit/CppUnitException.h b/CppUnit/include/Poco/CppUnit/CppUnitException.h
index 670290c58..46fc44bbd 100644
--- a/CppUnit/include/Poco/CppUnit/CppUnitException.h
+++ b/CppUnit/include/Poco/CppUnit/CppUnitException.h
@@ -68,17 +68,17 @@ inline CppUnitException::CppUnitException(const CppUnitException& other): except
 }
 
 
-inline CppUnitException::CppUnitException (const std::string& message, long lineNumber, const std::string& fileName): _message(message), _lineNumber(lineNumber), _data1lineNumber(CPPUNIT_UNKNOWNLINENUMBER), _data2lineNumber(CPPUNIT_UNKNOWNLINENUMBER), _fileName(fileName)
+inline CppUnitException::CppUnitException (const std::string& message, long line, const std::string& rFileName): _message(message), _lineNumber(line), _data1lineNumber(CPPUNIT_UNKNOWNLINENUMBER), _data2lineNumber(CPPUNIT_UNKNOWNLINENUMBER), _fileName(rFileName)
 {
 }
 
 
-inline CppUnitException::CppUnitException (const std::string& message, long lineNumber, long data1lineNumber, const std::string& fileName): _message(message), _lineNumber(lineNumber), _data1lineNumber(data1lineNumber), _data2lineNumber(CPPUNIT_UNKNOWNLINENUMBER), _fileName(fileName)
+inline CppUnitException::CppUnitException (const std::string& message, long line, long data1lineNumber, const std::string& rFileName): _message(message), _lineNumber(line), _data1lineNumber(data1lineNumber), _data2lineNumber(CPPUNIT_UNKNOWNLINENUMBER), _fileName(rFileName)
 {
 }
 
 
-inline CppUnitException::CppUnitException (const std::string& message, long lineNumber, long data1lineNumber, long data2lineNumber, const std::string& fileName): _message(message), _lineNumber(lineNumber), _data1lineNumber(data1lineNumber), _data2lineNumber(data2lineNumber), _fileName(fileName)
+inline CppUnitException::CppUnitException (const std::string& message, long line, long data1lineNumber, long data2lineNumber, const std::string& rFileName): _message(message), _lineNumber(line), _data1lineNumber(data1lineNumber), _data2lineNumber(data2lineNumber), _fileName(rFileName)
 {
 }
 
diff --git a/CppUnit/include/Poco/CppUnit/TestCaller.h b/CppUnit/include/Poco/CppUnit/TestCaller.h
index d859bb7ce..cfafaa2ce 100644
--- a/CppUnit/include/Poco/CppUnit/TestCaller.h
+++ b/CppUnit/include/Poco/CppUnit/TestCaller.h
@@ -56,10 +56,10 @@ class TestCaller: public TestCase
 	typedef void (Fixture::*TestMethod)();
 
 public:
-	TestCaller(const std::string& name, TestMethod test): 
-		TestCase(name), 
+	TestCaller(const std::string& rName, TestMethod test): 
+		TestCase(rName), 
 		_test(test),
-		_fixture(new Fixture(name))
+		_fixture(new Fixture(rName))
 	{
 	}
 	
diff --git a/CppUnit/include/Poco/CppUnit/TestCase.h b/CppUnit/include/Poco/CppUnit/TestCase.h
index cbe648a57..b1ede419f 100644
--- a/CppUnit/include/Poco/CppUnit/TestCase.h
+++ b/CppUnit/include/Poco/CppUnit/TestCase.h
@@ -173,7 +173,7 @@ protected:
 
 
 // Constructs a test case
-inline TestCase::TestCase(const std::string& name): _name (name)
+inline TestCase::TestCase(const std::string& rName): _name (rName)
 {
 }
 
diff --git a/CppUnit/include/Poco/CppUnit/TestFailure.h b/CppUnit/include/Poco/CppUnit/TestFailure.h
index 830dec1c8..eb391a6bb 100644
--- a/CppUnit/include/Poco/CppUnit/TestFailure.h
+++ b/CppUnit/include/Poco/CppUnit/TestFailure.h
@@ -52,7 +52,7 @@ protected:
 
 
 // Constructs a TestFailure with the given test and exception.
-inline TestFailure::TestFailure(Test* failedTest, CppUnitException* thrownException): _failedTest(failedTest), _thrownException(thrownException)
+inline TestFailure::TestFailure(Test* pFailedTest, CppUnitException* pThrownException): _failedTest(pFailedTest), _thrownException(pThrownException)
 {
 }
 
diff --git a/Data/src/RecordSet.cpp b/Data/src/RecordSet.cpp
index e3788706d..b630a3153 100644
--- a/Data/src/RecordSet.cpp
+++ b/Data/src/RecordSet.cpp
@@ -103,8 +103,8 @@ void RecordSet::reset(const Statement& stmt)
 	_totalRowCount = UNKNOWN_TOTAL_ROW_COUNT;
 	
 	RowMap::iterator it = _rowMap.begin();
-	RowMap::iterator itEnd = _rowMap.end();
-	for (; it != itEnd; ++it) delete it->second;
+	RowMap::iterator end = _rowMap.end();
+	for (; it != end; ++it) delete it->second;
 	_rowMap.clear();
 
 	Statement::operator = (stmt);
diff --git a/Foundation/src/DirectoryIteratorStrategy.cpp b/Foundation/src/DirectoryIteratorStrategy.cpp
index 6823354c1..44699239d 100644
--- a/Foundation/src/DirectoryIteratorStrategy.cpp
+++ b/Foundation/src/DirectoryIteratorStrategy.cpp
@@ -72,12 +72,19 @@ const std::string ChildrenFirstTraverse::next(Stack* itStack, bool* isFinished)
 	bool isDepthLimitReached = isFiniteDepth() && _depthDeterminer(*itStack) >= _maxDepth;
 	if (!isDepthLimitReached && isDirectory(*itStack->top()))
 	{
-		DirectoryIterator child_it(itStack->top().path());
-		// check if directory is empty
-		if (child_it != _itEnd)
+		// check the dir is iterable
+		try
+		{
+			DirectoryIterator child_it(itStack->top().path());
+			// check if directory is empty
+			if (child_it != _itEnd)
+			{
+				itStack->push(child_it);
+				return child_it->path();
+			}
+		}
+		catch (...)
 		{
-			itStack->push(child_it);
-			return child_it->path();
 		}
 	}
 
@@ -140,7 +147,17 @@ const std::string SiblingsFirstTraverse::next(Stack* itStack, bool* isFinished)
 		{
 			std::string dir = _dirsStack.top().front();
 			_dirsStack.top().pop();
-			DirectoryIterator child_it(dir);
+			DirectoryIterator child_it;
+			
+			// check the dir is iterable
+			try
+			{
+				child_it = dir;
+			}
+			catch (...)
+			{
+				continue;
+			}
 
 			// check if directory is empty
 			if (child_it != _itEnd)
diff --git a/Zip/src/Compress.cpp b/Zip/src/Compress.cpp
index b335a3074..ed558d771 100644
--- a/Zip/src/Compress.cpp
+++ b/Zip/src/Compress.cpp
@@ -155,8 +155,8 @@ void Compress::addFileRaw(std::istream& in, const ZipLocalFileHeader& h, const P
 		if(hdr.hasExtraField())	 // Update sizes in header extension.
 			hdr.setZip64Data();
 		_out.seekp(hdr.getStartPos(), std::ios_base::beg);
-		std::string header = hdr.createHeader();
-		_out.write(header.c_str(), static_cast<std::streamsize>(header.size()));
+		std::string headerString = hdr.createHeader();
+		_out.write(headerString.c_str(), static_cast<std::streamsize>(headerString.size()));
 		_out.seekp(0, std::ios_base::end);
 	}
 
@@ -273,8 +273,8 @@ void Compress::addRecursive(const Poco::Path& entry, ZipCommon::CompressionMetho
 	{
 		Poco::Path realFile(entry, *it);
 		Poco::Path renamedFile(aName, *it);
-		Poco::File aFile(realFile);
-		if (aFile.isDirectory())
+		Poco::File file(realFile);
+		if (file.isDirectory())
 		{
 			realFile.makeDirectory();
 			renamedFile.makeDirectory();
diff --git a/Zip/src/ZipLocalFileHeader.cpp b/Zip/src/ZipLocalFileHeader.cpp
index 64dae2b90..805f60d42 100644
--- a/Zip/src/ZipLocalFileHeader.cpp
+++ b/Zip/src/ZipLocalFileHeader.cpp
@@ -31,7 +31,7 @@ const char ZipLocalFileHeader::HEADER[ZipCommon::HEADER_SIZE] = {'\x50', '\x4b',
 
 
 ZipLocalFileHeader::ZipLocalFileHeader(const Poco::Path& fileName, 
-    const Poco::DateTime& lastModifiedAt,
+    const Poco::DateTime& lastModified,
     ZipCommon::CompressionMethod cm, 
     ZipCommon::CompressionLevel cl,
     bool forceZip64):
@@ -62,7 +62,7 @@ ZipLocalFileHeader::ZipLocalFileHeader(const Poco::Path& fileName,
     setHostSystem(hs);
     setEncryption(false);
     setExtraFieldSize(0);
-    setLastModifiedAt(lastModifiedAt);
+    setLastModifiedAt(lastModified);
     init(fileName, cm, cl);
 }
 
@@ -197,12 +197,12 @@ bool ZipLocalFileHeader::searchCRCAndSizesAfterData() const
 }
 
 
-void ZipLocalFileHeader::setFileName(const std::string& fileName, bool isDirectory)
+void ZipLocalFileHeader::setFileName(const std::string& fileName, bool directory)
 {
     poco_assert (!fileName.empty());
     Poco::Path aPath(fileName);
 
-    if (isDirectory)
+    if (directory)
     {
         aPath.makeDirectory();
         setCRC(0);
@@ -218,7 +218,7 @@ void ZipLocalFileHeader::setFileName(const std::string& fileName, bool isDirecto
     _fileName = aPath.toString(Poco::Path::PATH_UNIX);
     if (_fileName[0] == '/')
         _fileName = _fileName.substr(1);
-    if (isDirectory)
+    if (directory)
     {
         poco_assert_dbg (_fileName[_fileName.size()-1] == '/');
     }
diff --git a/Zip/testsuite/src/CompressTest.cpp b/Zip/testsuite/src/CompressTest.cpp
index d14a4a959..664c1cf3b 100644
--- a/Zip/testsuite/src/CompressTest.cpp
+++ b/Zip/testsuite/src/CompressTest.cpp
@@ -28,7 +28,7 @@
 using namespace Poco::Zip;
 
 
-CompressTest::CompressTest(const std::string& name): CppUnit::TestCase(name)
+CompressTest::CompressTest(const std::string& rName): CppUnit::TestCase(rName)
 {
 }
 
diff --git a/Zip/testsuite/src/PartialStreamTest.cpp b/Zip/testsuite/src/PartialStreamTest.cpp
index 619472306..336ab12cb 100644
--- a/Zip/testsuite/src/PartialStreamTest.cpp
+++ b/Zip/testsuite/src/PartialStreamTest.cpp
@@ -20,7 +20,7 @@
 using namespace Poco::Zip;
 
 
-PartialStreamTest::PartialStreamTest(const std::string& name): CppUnit::TestCase(name)
+PartialStreamTest::PartialStreamTest(const std::string& rName): CppUnit::TestCase(rName)
 {
 }
 
diff --git a/Zip/testsuite/src/ZipTest.cpp b/Zip/testsuite/src/ZipTest.cpp
index 5ef109286..e697290bb 100644
--- a/Zip/testsuite/src/ZipTest.cpp
+++ b/Zip/testsuite/src/ZipTest.cpp
@@ -35,7 +35,7 @@
 using namespace Poco::Zip;
 
 
-ZipTest::ZipTest(const std::string& name): CppUnit::TestCase(name)
+ZipTest::ZipTest(const std::string& rName): CppUnit::TestCase(rName)
 {
 }
 
diff --git a/appveyor.yml b/appveyor.yml
index e79fee5ff..3dbdaae3e 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -6,7 +6,17 @@ cache:
   - C:\OpenSSL-Win32
   - C:\OpenSSL-Win64
   - C:\Program Files (x86)\PostgreSQL\9.4
-  
+
+
+branches:
+  except:
+    - /.*ravis.*/
+
+
+skip_commits:
+  message: /Merge pull request.*/
+
+
 hosts:
   localhost: 127.0.0.1
   db.server.com: 127.0.0.2
@@ -48,6 +58,8 @@ environment:
 
   matrix:
 
+    - builder: cygwin
+      
     - builder: msbuild
       vsver: 120
       linkmode: shared
@@ -91,11 +103,28 @@ matrix:
   fast_finish: true
 
 install:
+  - C:\cygwin\setup-x86.exe -qnNdO -R C:/cygwin -s http://cygwin.mirror.constant.com -l C:/cygwin/var/cache/setup -P openssl-devel -P libiodbc-devel -P libiodbc2 -P odbc-mysql -P odbc-pgsql -P odbc-sqlite3 -P libmysqlclient-devel -P libsqlite3-devel 
+#
+# C:Cygwin64 is not yet available on Build Worker image.
+#  - C:\cygwin64\setup-x86_64.exe -B -q -n -N -d -l C:/cygwin64/var/cache/setup -R c:\cygwin64 -s http://cygwin.mirror.constant.com  -P openssl-devel
+  
   - set POCO_BASE=%CD%
   - set PATH=C:\ProgramData\chocolatey\bin;%PATH%
-  - c:\cygwin\bin\uname -a
-  - c:\cygwin\bin\cat /proc/cpuinfo
-  - c:\cygwin\bin\cat /proc/meminfo
+  - ps: |
+      if ($env:builder -eq "cygwin")
+      {
+        if ($env:platform -eq "Win32")
+        {
+          $env:PATH = "C:\cygwin\bin;" + $env:PATH
+        }
+        if ($env:platform -eq "x64")
+        {
+          $env:PATH = "c:\cygwin64\bin;" + $env:PATH
+        }
+      }
+  - uname -a
+  - cat /proc/cpuinfo
+  - cat /proc/meminfo
   - ps: |
       if ($env:builder -eq "cmake")
       {
@@ -119,8 +148,8 @@ install:
   - ps: |
       if ($env:builder -eq "cmake")
       {
-        $env:PATH = $env:ChocolateyInstall + "\bin" + ";" + $env:PATH
-        $env:PATH = $env:ChocolateyInstall + "\lib\jom\content" + ";" + $env:PATH
+        $env:PATH = $env:ChocolateyInstall + "\bin;" + $env:PATH
+        $env:PATH = $env:ChocolateyInstall + "\lib\jom\content;" + $env:PATH
       }
 # -------------------------------------------------------------------------------------------
 
@@ -160,7 +189,7 @@ install:
 #  MySQL 32 bit is not available by default on AppVeyor
 # -------------------------------------------------------------------------------------------
   - ps: |
-      if ($env:platform -eq "Win32")
+      if (($env:platform -eq "Win32") -and !($env:builder -eq "cygwin"))
       {
         if (Test-Path $env:MYSQL32) {
           echo "using $env:MYSQL32 from cache"
@@ -180,7 +209,7 @@ install:
 #  http://www.enterprisedb.com/products-services-training/pgdownload#windows
 # -------------------------------------------------------------------------------------------
   - ps: |
-      if ($env:platform -eq "Win32")
+      if (($env:platform -eq "Win32") -and !($env:builder -eq "cygwin"))
       {
         if (Test-Path $env:POSTGRES32) {
           echo "using $env:POSTGRES32 from cache"
@@ -244,48 +273,54 @@ before_build:
 #        & C:\cygwin\bin\ls -lR $env:MYSQL64
 # -------------------------------------------------------------------------------------------  
   - ps: |
-      if ($env:platform -eq "Win32")
+      if (!($env:builder -eq "cygwin"))
       {
-        $env:INCLUDE = $env:MYSQL32 + "\include;" + $env:INCLUDE
-        $env:LIB     = $env:MYSQL32 + "\lib;" + $env:LIB
-        $env:PATH    = $env:MYSQL32 + "\bin;" + $env:PATH
-        if (Test-Path ($env:MYSQL32 + "\lib\libmysql.dll")) {
-          $from = $env:MYSQL32 + "\lib\libmysql.dll";
-          $to   = $env:MYSQL32 + "\bin\libmysql.dll"
-          copy $from $to
+        if ($env:platform -eq "Win32")
+        {
+          $env:INCLUDE = $env:MYSQL32 + "\include;" + $env:INCLUDE
+          $env:LIB     = $env:MYSQL32 + "\lib;" + $env:LIB
+          $env:PATH    = $env:MYSQL32 + "\bin;" + $env:PATH
+          if (Test-Path ($env:MYSQL32 + "\lib\libmysql.dll")) {
+            $from = $env:MYSQL32 + "\lib\libmysql.dll";
+            $to   = $env:MYSQL32 + "\bin\libmysql.dll"
+            copy $from $to
+          }
         }
-      }
-      if ($env:platform -eq "x64")
-      {
-        $env:INCLUDE = $env:MYSQL64 + "\include;" + $env:INCLUDE
-        $env:LIB     = $env:MYSQL64 + "\lib;" + $env:LIB
-        $env:PATH    = $env:MYSQL64 + "\bin;" + $env:PATH
-        if (Test-Path ($env:MYSQL64 + "\lib\libmysql.dll")) {
-          $from = $env:MYSQL64 + "\lib\libmysql.dll";
-          $to   = $env:MYSQL64 + "\bin\libmysql.dll"
-          copy $from $to
+        if ($env:platform -eq "x64")
+        {
+          $env:INCLUDE = $env:MYSQL64 + "\include;" + $env:INCLUDE
+          $env:LIB     = $env:MYSQL64 + "\lib;" + $env:LIB
+          $env:PATH    = $env:MYSQL64 + "\bin;" + $env:PATH
+          if (Test-Path ($env:MYSQL64 + "\lib\libmysql.dll")) {
+            $from = $env:MYSQL64 + "\lib\libmysql.dll";
+            $to   = $env:MYSQL64 + "\bin\libmysql.dll"
+            copy $from $to
+          }
         }
+        $env:MYSQL_PWD="Password12!"
+        $cmd = 'mysql -e "create database pocotestdb;" --user=root';
+        iex "& $cmd"
       }
-      $env:MYSQL_PWD="Password12!"
-      $cmd = 'mysql -e "create database pocotestdb;" --user=root';
-      iex "& $cmd"
 # -------------------------------------------------------------------------------------------
 
 # -------------------------------------------------------------------------------------------  
 # PostgreSQL
 # -------------------------------------------------------------------------------------------  
   - ps: |
-      if ($env:platform -eq "Win32")
+      if (!($env:builder -eq "cygwin"))
       {
-          $env:INCLUDE = $env:POSTGRES32 + "\include;" + $env:INCLUDE
-          $env:LIB     = $env:POSTGRES32 + "\lib;" + $env:LIB
-          $env:PATH    = $env:POSTGRES32 + "\bin;" + $env:PATH
-      }
-      if ($env:platform -eq "x64")
-      {
-          $env:INCLUDE = $env:POSTGRES64 + "\include;" + $env:INCLUDE
-          $env:LIB     = $env:POSTGRES64 + "\lib;" + $env:LIB
-          $env:PATH    = $env:POSTGRES64 + "\bin;" + $env:PATH
+        if ($env:platform -eq "Win32")
+        {
+            $env:INCLUDE = $env:POSTGRES32 + "\include;" + $env:INCLUDE
+            $env:LIB     = $env:POSTGRES32 + "\lib;" + $env:LIB
+            $env:PATH    = $env:POSTGRES32 + "\bin;" + $env:PATH
+        }
+        if ($env:platform -eq "x64")
+        {
+            $env:INCLUDE = $env:POSTGRES64 + "\include;" + $env:INCLUDE
+            $env:LIB     = $env:POSTGRES64 + "\lib;" + $env:LIB
+            $env:PATH    = $env:POSTGRES64 + "\bin;" + $env:PATH
+        }
       }
 # -------------------------------------------------------------------------------------------
 
@@ -339,6 +374,11 @@ build_script:
 # Command executed with exception: MC: Compiling C:/projects/poco/Foundation/src/pocomsg.mc
 # -------------------------------------------------------------------------------------------
   - ps: |
+      if (($env:builder -eq "cygwin") -and ($env:platform -eq "Win32"))
+      {
+        $cmd = 'bash.exe configure --everything';iex "& $cmd"
+        $cmd = 'make.exe -s';iex "& $cmd"
+      }
       if ($env:builder -eq "msbuild")
       {
         $logger='"C:\Program Files\AppVeyor\BuildAgent\Appveyor.MSBuildLogger.dll"';
@@ -410,6 +450,11 @@ test_script:
       $line='-------------------------------------------------------------------------------------';
       if ($env:configuration -eq "release")
       {
+        if (($env:builder -eq "cygwin") -and ($env:platform -eq "Win32"))
+        {
+          $cmd = 'C:\cygwin\usr\sbin\cygserver.exe "&"';iex "& $cmd"
+          $cmd = 'bash.exe -c "appveyor/Cygwin/runtests.sh"';iex "& $cmd"
+        }
         if ($env:builder -eq "msbuild" -and $env:linkmode -eq "shared")
         {
           $suffix = '';
diff --git a/appveyor/Cygwin/excluded.sh b/appveyor/Cygwin/excluded.sh
new file mode 100644
index 000000000..e3c76c1cb
--- /dev/null
+++ b/appveyor/Cygwin/excluded.sh
@@ -0,0 +1,2 @@
+export EXCLUDE_TESTS="Foundation Data/ODBC Data/MySQL Redis PDF"
+
diff --git a/appveyor/Cygwin/runtests.sh b/appveyor/Cygwin/runtests.sh
new file mode 100644
index 000000000..31f228362
--- /dev/null
+++ b/appveyor/Cygwin/runtests.sh
@@ -0,0 +1,11 @@
+#!/bin/bash
+#
+# set -ev
+#
+set -v
+export POCO_BASE=`pwd`
+export PATH=$PATH:.
+export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:.
+source ./appveyor/ignored.sh
+source ./appveyor/Cygwin/excluded.sh
+build/script/runtests.sh
diff --git a/appveyor/ignored.sh b/appveyor/ignored.sh
new file mode 100644
index 000000000..57aa2c2a4
--- /dev/null
+++ b/appveyor/ignored.sh
@@ -0,0 +1,10 @@
+export CPPUNIT_IGNORE="\
+  N7CppUnit10TestCallerI8PathTestEE.testExpand, \
+  N7CppUnit10TestCallerI13RawSocketTestEE.testEchoIPv4, \
+  N7CppUnit10TestCallerI13RawSocketTestEE.testSendToReceiveFromIPv4, \
+  N7CppUnit10TestCallerI14ICMPClientTestEE.testPing, \
+  N7CppUnit10TestCallerI22HTTPSClientSessionTestEE.testProxy, \
+  N7CppUnit10TestCallerI22HTTPSStreamFactoryTestEE.testProxy, \
+  N7CppUnit10TestCallerI19MulticastSocketTestEE.testMulticast, \
+  N7CppUnit10TestCallerI13NTPClientTestEE.testTimeSync"
+