diff --git a/res/freedos/COMMAND.COM b/res/freedos/command.com
similarity index 100%
rename from res/freedos/COMMAND.COM
rename to res/freedos/command.com
diff --git a/res/freedos/DISPLAY.EXE b/res/freedos/display.exe
similarity index 100%
rename from res/freedos/DISPLAY.EXE
rename to res/freedos/display.exe
diff --git a/res/freedos/KERNEL.SYS b/res/freedos/kernel.sys
similarity index 100%
rename from res/freedos/KERNEL.SYS
rename to res/freedos/kernel.sys
diff --git a/res/freedos/KEYB.EXE b/res/freedos/keyb.exe
similarity index 100%
rename from res/freedos/KEYB.EXE
rename to res/freedos/keyb.exe
diff --git a/res/freedos/KEYBOARD.SYS b/res/freedos/keyboard.sys
similarity index 100%
rename from res/freedos/KEYBOARD.SYS
rename to res/freedos/keyboard.sys
diff --git a/res/freedos/KEYBRD2.SYS b/res/freedos/keybrd2.sys
similarity index 100%
rename from res/freedos/KEYBRD2.SYS
rename to res/freedos/keybrd2.sys
diff --git a/res/freedos/KEYBRD3.SYS b/res/freedos/keybrd3.sys
similarity index 100%
rename from res/freedos/KEYBRD3.SYS
rename to res/freedos/keybrd3.sys
diff --git a/res/freedos/KEYBRD4.SYS b/res/freedos/keybrd4.sys
similarity index 100%
rename from res/freedos/KEYBRD4.SYS
rename to res/freedos/keybrd4.sys
diff --git a/src/format.h b/src/format.h
index c66fb09b..bc32557c 100644
--- a/src/format.h
+++ b/src/format.h
@@ -17,7 +17,7 @@
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
-#include <Windows.h>
+#include <windows.h>
 #include <winioctl.h>				// for MEDIA_TYPE
 
 #pragma once
diff --git a/src/rufus.rc b/src/rufus.rc
index 112b5aad..d6e32648 100644
--- a/src/rufus.rc
+++ b/src/rufus.rc
@@ -224,15 +224,15 @@ BEGIN
     "IDR_SL_MBOOT_C32        RCDATA                  ""../res/syslinux/mboot.c32""\r\n"
     "IDR_GR_GRUB_GRLDR_MBR   RCDATA                  ""../res/grub/grldr.mbr""\r\n"
     "IDR_GR_GRUB2_CORE_IMG   RCDATA                  ""../res/grub2/core.img""\r\n"
-    "IDR_FD_COMMAND_COM      RCDATA                  ""../res/freedos/COMMAND.COM""\r\n"
-    "IDR_FD_KERNEL_SYS       RCDATA                  ""../res/freedos/KERNEL.SYS""\r\n"
-    "IDR_FD_DISPLAY_EXE      RCDATA                  ""../res/freedos/DISPLAY.EXE""\r\n"
-    "IDR_FD_KEYB_EXE         RCDATA                  ""../res/freedos/KEYB.EXE""\r\n"
-    "IDR_FD_MODE_COM         RCDATA                  ""../res/freedos/MODE.COM""\r\n"
-    "IDR_FD_KB1_SYS          RCDATA                  ""../res/freedos/KEYBOARD.SYS""\r\n"
-    "IDR_FD_KB2_SYS          RCDATA                  ""../res/freedos/KEYBRD2.SYS""\r\n"
-    "IDR_FD_KB3_SYS          RCDATA                  ""../res/freedos/KEYBRD3.SYS""\r\n"
-    "IDR_FD_KB4_SYS          RCDATA                  ""../res/freedos/KEYBRD4.SYS""\r\n"
+    "IDR_FD_COMMAND_COM      RCDATA                  ""../res/freedos/command.com""\r\n"
+    "IDR_FD_KERNEL_SYS       RCDATA                  ""../res/freedos/kernel.sys""\r\n"
+    "IDR_FD_DISPLAY_EXE      RCDATA                  ""../res/freedos/display.exe""\r\n"
+    "IDR_FD_KEYB_EXE         RCDATA                  ""../res/freedos/keyb.exe""\r\n"
+    "IDR_FD_MODE_COM         RCDATA                  ""../res/freedos/mode.com""\r\n"
+    "IDR_FD_KB1_SYS          RCDATA                  ""../res/freedos/keyboard.sys""\r\n"
+    "IDR_FD_KB2_SYS          RCDATA                  ""../res/freedos/keybrd2.sys""\r\n"
+    "IDR_FD_KB3_SYS          RCDATA                  ""../res/freedos/keybrd3.sys""\r\n"
+    "IDR_FD_KB4_SYS          RCDATA                  ""../res/freedos/keybrd4.sys""\r\n"
     "IDR_FD_EGA1_CPX         RCDATA                  ""../res/freedos/ega.cpx""\r\n"
     "IDR_FD_EGA2_CPX         RCDATA                  ""../res/freedos/ega2.cpx""\r\n"
     "IDR_FD_EGA3_CPX         RCDATA                  ""../res/freedos/ega3.cpx""\r\n"
@@ -390,15 +390,15 @@ IDR_SL_LDLINUX_V6_SYS   RCDATA                  "../res/syslinux/ldlinux_v6.sys"
 IDR_SL_MBOOT_C32        RCDATA                  "../res/syslinux/mboot.c32"
 IDR_GR_GRUB_GRLDR_MBR   RCDATA                  "../res/grub/grldr.mbr"
 IDR_GR_GRUB2_CORE_IMG   RCDATA                  "../res/grub2/core.img"
-IDR_FD_COMMAND_COM      RCDATA                  "../res/freedos/COMMAND.COM"
-IDR_FD_KERNEL_SYS       RCDATA                  "../res/freedos/KERNEL.SYS"
-IDR_FD_DISPLAY_EXE      RCDATA                  "../res/freedos/DISPLAY.EXE"
-IDR_FD_KEYB_EXE         RCDATA                  "../res/freedos/KEYB.EXE"
-IDR_FD_MODE_COM         RCDATA                  "../res/freedos/MODE.COM"
-IDR_FD_KB1_SYS          RCDATA                  "../res/freedos/KEYBOARD.SYS"
-IDR_FD_KB2_SYS          RCDATA                  "../res/freedos/KEYBRD2.SYS"
-IDR_FD_KB3_SYS          RCDATA                  "../res/freedos/KEYBRD3.SYS"
-IDR_FD_KB4_SYS          RCDATA                  "../res/freedos/KEYBRD4.SYS"
+IDR_FD_COMMAND_COM      RCDATA                  "../res/freedos/command.com"
+IDR_FD_KERNEL_SYS       RCDATA                  "../res/freedos/kernel.sys"
+IDR_FD_DISPLAY_EXE      RCDATA                  "../res/freedos/display.exe"
+IDR_FD_KEYB_EXE         RCDATA                  "../res/freedos/keyb.exe"
+IDR_FD_MODE_COM         RCDATA                  "../res/freedos/mode.com"
+IDR_FD_KB1_SYS          RCDATA                  "../res/freedos/keyboard.sys"
+IDR_FD_KB2_SYS          RCDATA                  "../res/freedos/keybrd2.sys"
+IDR_FD_KB3_SYS          RCDATA                  "../res/freedos/keybrd3.sys"
+IDR_FD_KB4_SYS          RCDATA                  "../res/freedos/keybrd4.sys"
 IDR_FD_EGA1_CPX         RCDATA                  "../res/freedos/ega.cpx"
 IDR_FD_EGA2_CPX         RCDATA                  "../res/freedos/ega2.cpx"
 IDR_FD_EGA3_CPX         RCDATA                  "../res/freedos/ega3.cpx"