diff --git a/build/builder/build-assist.py b/build/builder/build-assist.py
index 2017c4d..da84c60 100644
--- a/build/builder/build-assist.py
+++ b/build/builder/build-assist.py
@@ -29,7 +29,7 @@ class BuilderWin(BuilderBase):
 
     def build_exe(self):
         cc.i('build tp_assist...')
-        sln_file = os.path.join(env.root_path, 'client', 'tp_assist_win', 'tp_assist.vs2015.sln')
+        sln_file = os.path.join(env.root_path, 'client', 'tp_assist_win', 'tp_assist.vs2017.sln')
         out_file = os.path.join(env.root_path, 'out', 'client', ctx.bits_path, ctx.target_path, 'tp_assist.exe')
         if os.path.exists(out_file):
             utils.remove(out_file)
diff --git a/build/builder/build-external.py b/build/builder/build-external.py
index c018dcd..e8d2622 100644
--- a/build/builder/build-external.py
+++ b/build/builder/build-external.py
@@ -188,7 +188,7 @@ class BuilderWin(BuilderBase):
         cc.v('')
 
         cc.w('On Windows, when build libssh, need you use cmake-gui.exe to generate solution file')
-        cc.w('for Visual Studio 2015. Visit https://docs.tp4a.com for more details.')
+        cc.w('for Visual Studio 2017. Visit https://docs.tp4a.com for more details.')
         cc.w('\nOnce the libssh.sln generated, press Enter to continue or Q to quit...', end='')
         try:
             x = env.input()
diff --git a/build/builder/build-server.py b/build/builder/build-server.py
index ffe5050..85fd0ce 100644
--- a/build/builder/build-server.py
+++ b/build/builder/build-server.py
@@ -27,7 +27,7 @@ class BuilderWin(BuilderBase):
         if ctx.target_path == 'debug':
             cc.w('cannot build debug version of tp_web, skip.')
         else:
-            sln_file = os.path.join(env.root_path, 'server', 'tp_web', 'src', 'tp_web.vs2015.sln')
+            sln_file = os.path.join(env.root_path, 'server', 'tp_web', 'src', 'tp_web.vs2017.sln')
             out_file = os.path.join(env.root_path, 'out', 'server', ctx.bits_path, ctx.target_path, 'tp_web.exe')
             if os.path.exists(out_file):
                 utils.remove(out_file)
@@ -35,7 +35,7 @@ class BuilderWin(BuilderBase):
             utils.ensure_file_exists(out_file)
 
         cc.n('build core server ...')
-        sln_file = os.path.join(env.root_path, 'server', 'tp_core', 'core', 'tp_core.vs2015.sln')
+        sln_file = os.path.join(env.root_path, 'server', 'tp_core', 'core', 'tp_core.vs2017.sln')
         out_file = os.path.join(env.root_path, 'out', 'server', ctx.bits_path, ctx.target_path, 'tp_core.exe')
         if os.path.exists(out_file):
             utils.remove(out_file)
@@ -43,7 +43,7 @@ class BuilderWin(BuilderBase):
         utils.ensure_file_exists(out_file)
 
         cc.n('build SSH protocol ...')
-        sln_file = os.path.join(env.root_path, 'server', 'tp_core', 'protocol', 'ssh', 'tpssh.vs2015.sln')
+        sln_file = os.path.join(env.root_path, 'server', 'tp_core', 'protocol', 'ssh', 'tpssh.vs2017.sln')
         out_file = os.path.join(env.root_path, 'out', 'server', ctx.bits_path, ctx.target_path, 'tpssh.dll')
         if os.path.exists(out_file):
             utils.remove(out_file)
@@ -52,7 +52,7 @@ class BuilderWin(BuilderBase):
         utils.copy_file(os.path.join(env.root_path, 'external', 'libssh', 'lib', ctx.target_path), os.path.join(env.root_path, 'out', 'server', ctx.bits_path, ctx.target_path), 'ssh.dll')
 
         cc.n('build TELNET protocol ...')
-        sln_file = os.path.join(env.root_path, 'server', 'tp_core', 'protocol', 'telnet', 'tptelnet.vs2015.sln')
+        sln_file = os.path.join(env.root_path, 'server', 'tp_core', 'protocol', 'telnet', 'tptelnet.vs2017.sln')
         out_file = os.path.join(env.root_path, 'out', 'server', ctx.bits_path, ctx.target_path, 'tptelnet.dll')
         if os.path.exists(out_file):
             utils.remove(out_file)
@@ -61,7 +61,7 @@ class BuilderWin(BuilderBase):
 
         if with_rdp:
             cc.n('build RDP protocol ...')
-            sln_file = os.path.join(env.root_path, 'server', 'tp_core', 'protocol', 'rdp', 'tprdp.vs2015.sln')
+            sln_file = os.path.join(env.root_path, 'server', 'tp_core', 'protocol', 'rdp', 'tprdp.vs2017.sln')
             out_file = os.path.join(env.root_path, 'out', 'server', ctx.bits_path, ctx.target_path, 'tprdp.dll')
             if os.path.exists(out_file):
                 utils.remove(out_file)
diff --git a/build/builder/core/env.py b/build/builder/core/env.py
index 4739f82..bc5f40c 100644
--- a/build/builder/core/env.py
+++ b/build/builder/core/env.py
@@ -190,30 +190,41 @@ class Env(object):
 
         return True
 
-    def _get_msbuild(self):
-        # 14.0 = VS2015
-        # 12.0 = VS2012
-        #  4.0 = VS2008
-        chk = ['14.0', '12.0', '4.0']
+    # def _get_msbuild(self):
+    #     # 14.0 = VS2015
+    #     # 12.0 = VS2012
+    #     #  4.0 = VS2008
+    #     chk = ['14.0', '12.0', '4.0']
 
-        p = None
-        for c in chk:
-            p = self._winreg_read(winreg.HKEY_LOCAL_MACHINE, r'SOFTWARE\Microsoft\MSBuild\ToolsVersions\{}'.format(c), r'MSBuildToolsPath')
-            if p is not None:
-                break
+    #     p = None
+    #     for c in chk:
+    #         p = self._winreg_read(winreg.HKEY_LOCAL_MACHINE, r'SOFTWARE\Microsoft\MSBuild\ToolsVersions\{}'.format(c), r'MSBuildToolsPath')
+    #         if p is not None:
+    #             break
 
-        return os.path.join(p[0], 'MSBuild.exe') if p is not None else None
+    #     return os.path.join(p[0], 'MSBuild.exe') if p is not None else None
+
+    # def _get_visual_studio_path(self):
+    #     chk = ['14.0', '12.0', '4.0']
+    #     p = None
+    #     for c in chk:
+    #         p = self._winreg_read(winreg.HKEY_LOCAL_MACHINE, r'SOFTWARE\Microsoft\VisualStudio\{}'.format(c), r'ShellFolder')
+    #         if p is not None:
+    #             break
+
+    #     return p[0] if p is not None else None
 
     def _get_visual_studio_path(self):
-        chk = ['14.0', '12.0', '4.0']
         p = None
-        for c in chk:
-            p = self._winreg_read(winreg.HKEY_LOCAL_MACHINE, r'SOFTWARE\Microsoft\VisualStudio\{}'.format(c), r'ShellFolder')
-            if p is not None:
-                break
-
+        p = self._winreg_read(winreg.HKEY_LOCAL_MACHINE, r'SOFTWARE\WOW6432Node\Microsoft\VisualStudio\SxS\VS7', r'15.0')
         return p[0] if p is not None else None
 
+    def _get_msbuild(self):
+        vs2017 = self._get_visual_studio_path()
+        if vs2017 is None:
+            return None
+        return os.path.join(vs2017, 'MSBuild', '15.0', 'Bin', 'MSBuild.exe')
+
     def _get_perl(self):
         p = self._winreg_read(winreg.HKEY_LOCAL_MACHINE, r'SOFTWARE\perl', 'BinDir')
         return p[0] if p is not None else None
diff --git a/server/tp_core/core/tp_core.vs2017.vcxproj b/server/tp_core/core/tp_core.vs2017.vcxproj
index 4d800a1..8f3236a 100644
--- a/server/tp_core/core/tp_core.vs2017.vcxproj
+++ b/server/tp_core/core/tp_core.vs2017.vcxproj
@@ -23,6 +23,7 @@
     <Keyword>Win32Proj</Keyword>
     <RootNamespace>tp_core</RootNamespace>
     <ProjectName>tp_core</ProjectName>
+    <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
@@ -34,9 +35,9 @@
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v141_xp</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>