diff --git a/include/winspool.h b/include/winspool.h
index a642eef93b0..47fc113cf58 100644
--- a/include/winspool.h
+++ b/include/winspool.h
@@ -273,6 +273,22 @@ extern "C" {
 #define JOB_EXECUTE         (STANDARD_RIGHTS_EXECUTE | JOB_ACCESS_ADMINISTER)
 #define JOB_ALL_ACCESS      (STANDARD_RIGHTS_REQUIRED | JOB_ACCESS_ADMINISTER)
 
+
+/* Flags for printer drivers */
+#define DRIVER_KERNELMODE       0x00000001
+#define DRIVER_USERMODE         0x00000002
+
+#define APD_STRICT_UPGRADE      0x00000001
+#define APD_STRICT_DOWNGRADE    0x00000002
+#define APD_COPY_ALL_FILES      0x00000004
+#define APD_COPY_NEW_FILES      0x00000008
+#define APD_COPY_FROM_DIRECTORY 0x00000010
+
+#define DPD_DELETE_UNUSED_FILES     0x00000001
+#define DPD_DELETE_SPECIFIC_VERSION 0x00000002
+#define DPD_DELETE_ALL_FILES        0x00000004
+
+
 /* TYPES */
 typedef struct _PRINTER_DEFAULTSA {
   LPSTR        pDatatype;