diff --git a/racket/src/rktio/rktio_fd.c b/racket/src/rktio/rktio_fd.c
index edb27145ee..6ed2a3a7bc 100644
--- a/racket/src/rktio/rktio_fd.c
+++ b/racket/src/rktio/rktio_fd.c
@@ -1483,7 +1483,7 @@ static void deinit_write_fd(rktio_t *rktio, rktio_fd_t *rfd, int full_close)
 
 static long WINAPI WindowsFDWriter(Win_FD_Output_Thread *oth)
 {
-  DWORD towrite, wrote, start;
+  DWORD towrite, wrote;
   int ok, more_work = 0, err_no;
 
   if (oth->nonblocking) {
diff --git a/racket/src/worksp/libffi/libffi.vcproj b/racket/src/worksp/libffi/libffi.vcproj
index deede22a4f..b833de2691 100644
--- a/racket/src/worksp/libffi/libffi.vcproj
+++ b/racket/src/worksp/libffi/libffi.vcproj
@@ -21,7 +21,7 @@
 	<Configurations>
 		<Configuration
 			Name="Debug|Win32"
-			OutputDirectory="$(SolutionDir)\..\libffi\$(ConfigurationName)"
+			OutputDirectory="$(SolutionDir)\..\libffi\$(PlatformName)\$(ConfigurationName)"
 			IntermediateDirectory="..\libffi\$(PlatformName)\$(ConfigurationName)"
 			ConfigurationType="4"
 			CharacterSet="1"
@@ -61,7 +61,7 @@
 		</Configuration>
 		<Configuration
 			Name="Release|Win32"
-			OutputDirectory="$(SolutionDir)\..\libffi\$(ConfigurationName)"
+			OutputDirectory="$(SolutionDir)\..\libffi\$(PlatformName)\$(ConfigurationName)"
 			IntermediateDirectory="..\libffi\$(PlatformName)\$(ConfigurationName)"
 			ConfigurationType="4"
 			CharacterSet="1"
diff --git a/racket/src/worksp/librktio/librktio.vcproj b/racket/src/worksp/librktio/librktio.vcproj
index d0c7689fb6..8d9346994e 100644
--- a/racket/src/worksp/librktio/librktio.vcproj
+++ b/racket/src/worksp/librktio/librktio.vcproj
@@ -21,7 +21,7 @@
 	<Configurations>
 		<Configuration
 			Name="Debug|Win32"
-			OutputDirectory="$(SolutionDir)\..\librktio\$(ConfigurationName)"
+			OutputDirectory="$(SolutionDir)\..\librktio\$(PlatformName)\$(ConfigurationName)"
 			IntermediateDirectory="..\librktio\$(PlatformName)\$(ConfigurationName)"
 			ConfigurationType="4"
 			CharacterSet="1"
@@ -61,7 +61,7 @@
 		</Configuration>
 		<Configuration
 			Name="Release|Win32"
-			OutputDirectory="$(SolutionDir)\..\librktio\$(ConfigurationName)"
+			OutputDirectory="$(SolutionDir)\..\librktio\$(PlatformName)\$(ConfigurationName)"
 			IntermediateDirectory="..\librktio\$(PlatformName)\$(ConfigurationName)"
 			ConfigurationType="4"
 			CharacterSet="1"