diff --git a/stepmania/src/StepMania-net2005.vcproj b/stepmania/src/StepMania-net2005.vcproj
index 733471577a..fedba6b9eb 100644
--- a/stepmania/src/StepMania-net2005.vcproj
+++ b/stepmania/src/StepMania-net2005.vcproj
@@ -3166,6 +3166,14 @@
 				RelativePath=".\RageSoundReader_ChannelSplit.h"
 				>
 			</File>
+			<File
+				RelativePath=".\RageSoundReader_Extend.cpp"
+				>
+			</File>
+			<File
+				RelativePath=".\RageSoundReader_Extend.h"
+				>
+			</File>
 			<File
 				RelativePath="RageSoundReader_FileReader.cpp"
 				>
@@ -3226,6 +3234,14 @@
 				RelativePath=".\RageSoundReader_SpeedChange.h"
 				>
 			</File>
+			<File
+				RelativePath=".\RageSoundReader_ThreadedBuffer.cpp"
+				>
+			</File>
+			<File
+				RelativePath=".\RageSoundReader_ThreadedBuffer.h"
+				>
+			</File>
 			<File
 				RelativePath="RageSoundReader_Vorbisfile.cpp"
 				>