diff --git a/win32/hexchat.props b/win32/hexchat.props
index e038e2b8..95521977 100644
--- a/win32/hexchat.props
+++ b/win32/hexchat.props
@@ -9,7 +9,7 @@
 		<YourMsgfmtPath>c:\gtk-build\msgfmt</YourMsgfmtPath>
 		<YourPerlPath>c:\gtk-build\perl-5.20</YourPerlPath>
 		<YourPython2Path>c:\gtk-build\python-2.7</YourPython2Path>
-		<YourPython3Path>c:\gtk-build\python-3.4</YourPython3Path>
+		<YourPython3Path>c:\gtk-build\python-3.5</YourPython3Path>
 		<YourWinSparklePath>c:\gtk-build\WinSparkle</YourWinSparklePath>
 
 		<!-- YOU SHOULDN'T TOUCH ANYTHING BELOW -->
@@ -27,7 +27,7 @@
 		<Python2Lib>python27</Python2Lib>
 		<Python2Output>hcpython2</Python2Output>
 		<Python3Path>$(YourPython3Path)\$(PlatformName)</Python3Path>
-		<Python3Lib>python34</Python3Lib>
+		<Python3Lib>python35</Python3Lib>
 		<Python3Output>hcpython3</Python3Output>
 		<Glib>$(DepsRoot)\include\glib-2.0;$(DepsRoot)\lib\glib-2.0\include;$(DepsRoot)\include\libxml2</Glib>
 		<Gtk>$(DepsRoot)\include\gtk-2.0;$(DepsRoot)\lib\gtk-2.0\include;$(DepsRoot)\include\atk-1.0;$(DepsRoot)\include\cairo;$(DepsRoot)\include\pango-1.0;$(DepsRoot)\include\gdk-pixbuf-2.0</Gtk>
diff --git a/win32/installer/hexchat.iss.tt b/win32/installer/hexchat.iss.tt
index 99571e20..33098fcf 100644
--- a/win32/installer/hexchat.iss.tt
+++ b/win32/installer/hexchat.iss.tt
@@ -75,7 +75,7 @@ Name: "langs"; Description: "Language Interfaces"; Types: custom; Flags: disable
 Name: "langs\perl"; Description: "Perl (requires Perl 5.20)"; Types: custom; Flags: disablenouninstallwarning
 Name: "langs\python"; Description: "Python Interface"; Types: custom; Flags: disablenouninstallwarning
 Name: "langs\python\python2"; Description: "Python (requires Python 2.7)"; Types: custom; Flags: disablenouninstallwarning exclusive
-Name: "langs\python\python3"; Description: "Python (requires Python 3.4)"; Types: custom; Flags: disablenouninstallwarning exclusive
+Name: "langs\python\python3"; Description: "Python (requires Python 3.5)"; Types: custom; Flags: disablenouninstallwarning exclusive
 
 [Tasks]
 Name: portable; Description: "Yes"; GroupDescription: "Portable Mode: Stores configuration files within install directory for portable drives."; Flags: unchecked
@@ -102,6 +102,7 @@ Filename: "{tmp}\vcredist.exe"; Parameters: "/install /quiet /norestart"; Status
 Filename: "{tmp}\dotnet4.exe"; Parameters: "/q /norestart"; StatusMsg: "Installing .NET"; Components: xtm; Flags: skipifdoesntexist; Tasks: not portable
 Filename: "{tmp}\perl.msi"; StatusMsg: "Installing Perl"; Components: langs\perl; Flags: shellexec skipifdoesntexist; Tasks: not portable
 Filename: "{tmp}\python.msi"; StatusMsg: "Installing Python"; Components: langs\python; Flags: shellexec skipifdoesntexist; Tasks: not portable
+Filename: "{tmp}\python.exe"; Parameters: "InstallAllUsers=1 PrependPath=1"; StatusMsg: "Installing Python"; Components: langs\python; Flags: shellexec skipifdoesntexist; Tasks: not portable
 Filename: "{tmp}\spelling-dicts.exe"; Parameters: "/verysilent"; StatusMsg: "Installing Spelling Dictionaries"; Components: spell; Flags: skipifdoesntexist; Tasks: not portable
 
 [Files]
@@ -270,13 +271,13 @@ begin
 #if APPARCH == "x64"
 		REDIST := 'https://dl.hexchat.net/misc/vcredist_2015_x64.exe';
 		PERL := 'https://dl.hexchat.net/misc/perl/Perl%205.20.0%20x64.msi';
-		PY2 := 'http://python.org/ftp/python/2.7.8/python-2.7.8.amd64.msi';
-		PY3 := 'http://python.org/ftp/python/3.4.1/python-3.4.1.amd64.msi';
+		PY2 := 'http://python.org/ftp/python/2.7.10/python-2.7.10.amd64.msi';
+		PY3 := 'http://python.org/ftp/python/3.5.1/python-3.5.1-amd64.exe';
 #else
 		REDIST := 'https://dl.hexchat.net/misc/vcredist_2015_x86.exe';
 		PERL := 'https://dl.hexchat.net/misc/perl/Perl%205.20.0%20x86.msi';
-		PY2 := 'http://python.org/ftp/python/2.7.8/python-2.7.8.msi';
-		PY3 := 'http://python.org/ftp/python/3.4.1/python-3.4.1.msi';
+		PY2 := 'http://python.org/ftp/python/2.7.10/python-2.7.10.msi';
+		PY3 := 'http://python.org/ftp/python/3.5.1/python-3.5.1.exe';
 #endif
 		DOTNET := 'https://dl.hexchat.net/misc/dotnet_40.exe';
 		SPELL := 'https://dl.hexchat.net/hexchat/HexChat%20Spelling%20Dictionaries%20r2.exe';
@@ -298,8 +299,8 @@ begin
 			if IsComponentSelected('langs\python\python2') and not CheckDLL('python27.dll') then
 				idpAddFile(PY2, ExpandConstant('{tmp}\python.msi'));
 
-			if IsComponentSelected('langs\python\python3') and not CheckDLL('python34.dll') then
-				idpAddFile(PY3, ExpandConstant('{tmp}\python.msi'));
+			if IsComponentSelected('langs\python\python3') and not CheckDLL('python35.dll') then
+				idpAddFile(PY3, ExpandConstant('{tmp}\python.exe'));
 		end;
 	end;
   end;