Found a way to make the MS-Windows installer wait for the uninstaller to
finish, no need for the user to press Enter.
diff --git a/src/Make_mvc.mak b/src/Make_mvc.mak
index 8a4e5ad..695d352 100644
--- a/src/Make_mvc.mak
+++ b/src/Make_mvc.mak
@@ -830,7 +830,7 @@
 
 install.exe: dosinst.c
 	$(CC) /nologo -DNDEBUG -DWIN32 dosinst.c kernel32.lib shell32.lib \
-		ole32.lib advapi32.lib uuid.lib
+		user32.lib ole32.lib advapi32.lib uuid.lib
 	- if exist install.exe del install.exe
 	ren dosinst.exe install.exe