diff --git a/rfb_win32/rfb_win32.dsp b/rfb_win32/rfb_win32.dsp
index 5c13036..83b0096 100644
--- a/rfb_win32/rfb_win32.dsp
+++ b/rfb_win32/rfb_win32.dsp
@@ -166,6 +166,10 @@
 # End Source File
 # Begin Source File
 
+SOURCE=.\ProgressControl.cxx
+# End Source File
+# Begin Source File
+
 SOURCE=.\RegConfig.cxx
 # End Source File
 # Begin Source File
@@ -294,6 +298,10 @@
 # End Source File
 # Begin Source File
 
+SOURCE=.\ProgressControl.h
+# End Source File
+# Begin Source File
+
 SOURCE=.\RegConfig.h
 # End Source File
 # Begin Source File