diff --git a/build/VStudio/installer/Product.wxs b/build/VStudio/installer/Product.wxs
index 9146fe9b..d5717f0b 100644
--- a/build/VStudio/installer/Product.wxs
+++ b/build/VStudio/installer/Product.wxs
@@ -587,14 +587,14 @@
                 <Component Id="C.ptfs_main.c">
                     <File Name="ptfs-main.c" KeyPath="yes" />
                 </Component>
-                <Component Id="C.ptfs.sln">
-                    <File Name="ptfs.sln" KeyPath="yes" />
+                <Component Id="C.ntptfs.sln">
+                    <File Name="ntptfs.sln" KeyPath="yes" />
                 </Component>
-                <Component Id="C.ptfs.vcxproj">
-                    <File Name="ptfs.vcxproj" KeyPath="yes" />
+                <Component Id="C.ntptfs.vcxproj">
+                    <File Name="ntptfs.vcxproj" KeyPath="yes" />
                 </Component>
-                <Component Id="C.ptfs.vcxproj.filters">
-                    <File Name="ptfs.vcxproj.filters" KeyPath="yes" />
+                <Component Id="C.ntptfs.vcxproj.filters">
+                    <File Name="ntptfs.vcxproj.filters" KeyPath="yes" />
                 </Component>
             </Directory>
             <Directory Id="SMPDIR.airfs" Name="airfs">
@@ -885,9 +885,9 @@
             <ComponentRef Id="C.ptfs.c" />
             <ComponentRef Id="C.lfs.c" />
             <ComponentRef Id="C.ptfs_main.c" />
-            <ComponentRef Id="C.ptfs.sln" />
-            <ComponentRef Id="C.ptfs.vcxproj" />
-            <ComponentRef Id="C.ptfs.vcxproj.filters" />
+            <ComponentRef Id="C.ntptfs.sln" />
+            <ComponentRef Id="C.ntptfs.vcxproj" />
+            <ComponentRef Id="C.ntptfs.vcxproj.filters" />
             <ComponentRef Id="C.airfs.cpp" />
             <ComponentRef Id="C.persistence.cpp" />
             <ComponentRef Id="C.common.h" />
diff --git a/tst/ntptfs/ptfs.sln b/tst/ntptfs/ntptfs.sln
similarity index 90%
rename from tst/ntptfs/ptfs.sln
rename to tst/ntptfs/ntptfs.sln
index d289a3e8..54da6ff0 100644
--- a/tst/ntptfs/ptfs.sln
+++ b/tst/ntptfs/ntptfs.sln
@@ -3,7 +3,7 @@ Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio 14
 VisualStudioVersion = 14.0.25420.1
 MinimumVisualStudioVersion = 10.0.40219.1
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "ptfs", "ptfs.vcxproj", "{BA69F863-4426-4CAE-8676-331B985C5DA8}"
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "ntptfs", "ntptfs.vcxproj", "{BA69F863-4426-4CAE-8676-331B985C5DA8}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
diff --git a/tst/ntptfs/ptfs.vcxproj b/tst/ntptfs/ntptfs.vcxproj
similarity index 100%
rename from tst/ntptfs/ptfs.vcxproj
rename to tst/ntptfs/ntptfs.vcxproj
diff --git a/tst/ntptfs/ptfs.vcxproj.filters b/tst/ntptfs/ntptfs.vcxproj.filters
similarity index 100%
rename from tst/ntptfs/ptfs.vcxproj.filters
rename to tst/ntptfs/ntptfs.vcxproj.filters