Add the .DEF files to the Windows installer.
diff --git a/expat/win32/expat.iss b/expat/win32/expat.iss
index 0897701..1ad7398 100644
--- a/expat/win32/expat.iss
+++ b/expat/win32/expat.iss
@@ -45,6 +45,7 @@
CopyMode: alwaysoverwrite; Source: bcb5\*.*; DestDir: "{app}\Source\bcb5"
CopyMode: alwaysoverwrite; Source: lib\*.c; DestDir: "{app}\Source\lib"
CopyMode: alwaysoverwrite; Source: lib\*.h; DestDir: "{app}\Source\lib"
+CopyMode: alwaysoverwrite; Source: lib\*.def; DestDir: "{app}\Source\lib"
CopyMode: alwaysoverwrite; Source: lib\*.dsp; DestDir: "{app}\Source\lib"
CopyMode: alwaysoverwrite; Source: examples\*.c; DestDir: "{app}\Source\examples"
CopyMode: alwaysoverwrite; Source: examples\*.dsp; DestDir: "{app}\Source\examples"