diff -u dbu53ori/dbu.prg dbu53pat/dbu.prg
--- dbu53ori/dbu.prg	1996-05-20 05:31:00.000000000 +0200
+++ dbu53pat/dbu.prg	2009-06-10 01:43:32.000000000 +0200
@@ -9,8 +9,8 @@
 *
 ***/
 
-#include "Inkey.Ch"
-#include "Set.Ch"
+#include "inkey.ch"
+#include "set.ch"
 
 // Uncomment to update the obsolete declaration:
 #xtranslate DECLARE => PRIVATE
@@ -71,6 +71,9 @@
    SET SCOREBOARD OFF                            // who's keeping score, anyhow
    SET KEY 28 TO                                 // some folks need help
 
+   SET DATE ANSI
+   SET CENTURY ON
+
    IF (ISCOLOR() .OR. "/C" $ UPPER(param2)) .AND. .NOT. "/M" $ UPPER(param2)
       // make it pretty
       color1 := "W+/B,N/W,B"                      // normal
@@ -360,14 +363,14 @@
    help_title[22] := "REPLACE"
 
    // arrays for file names in default directory
-   DECLARE dbf_list[adir("*.DBF") + 20]          // directory of data files
+   DECLARE dbf_list[adir("*.dbf") + 20]          // directory of data files
    DECLARE ntx_list[adir("*" + INDEXEXT()) + 20] // directory of index files
-   DECLARE vew_list[adir("*.VEW") + 20]          // directory of view files
+   DECLARE vew_list[adir("*.vew") + 20]          // directory of view files
 
    // fill the arrays with filenames
-   array_dir("*.DBF",dbf_list)
+   array_dir("*.dbf",dbf_list)
    array_dir("*" + INDEXEXT(),ntx_list)
-   array_dir("*.VEW",vew_list)
+   array_dir("*.vew",vew_list)
 
    // default to set view
    local_func := 0                                // local menu
@@ -392,13 +395,13 @@
 
     ENDIF
 
-      CASE FILE(com_line + ".VEW")
+      CASE FILE(com_line + ".vew")
     // look for file name with .VEW extension
-    com_line := com_line + ".VEW"
+    com_line := com_line + ".vew"
 
-      CASE FILE(com_line + ".DBF")
+      CASE FILE(com_line + ".dbf")
     // look for file name with .DBF extension
-    com_line := com_line + ".DBF"
+    com_line := com_line + ".dbf"
 
       OTHERWISE
     // file not found..ignore command line
@@ -409,14 +412,14 @@
       IF .NOT. EMPTY(com_line)
     // command line file exists
 
-    IF RAT(".VEW", com_line) = LEN(com_line) - 3
+    IF RAT(".vew", Lower(com_line)) = LEN(com_line) - 3
        // assume a valid .VEW file
        view_file := com_line
        set_from(.F.)                        // restore view
        KEYBOARD CHR(-4) + CHR(24) + CHR(13) // browse view
 
     ELSE
-       // assume a valid .DBF file
+       // assume a valid .dbf file
        dbf[1] := com_line                    // primary database
 
        IF NetUse( com_line )
@@ -708,18 +711,18 @@
     @ 3,0 CLEAR
 
     // rebuild directory arrays..must keep current
-    DECLARE dbf_list[adir("*.DBF") + 20]
+    DECLARE dbf_list[adir("*.dbf") + 20]
     DECLARE ntx_list[adir("*" + INDEXEXT()) + 20]
-    DECLARE vew_list[adir("*.VEW") + 20]
+    DECLARE vew_list[adir("*.vew") + 20]
 
     // fill the arrays with filenames..data files
-    array_dir("*.DBF",dbf_list)
+    array_dir("*.dbf",dbf_list)
 
     // index files
     array_dir("*" + INDEXEXT(),ntx_list)
 
     // view files
-    array_dir("*.VEW",vew_list)
+    array_dir("*.vew",vew_list)
     cur_area := 0                            // re-draw view screen
     sysfunc := 0                             // back to the main view screen
 
diff -u dbu53ori/dbucopy.prg dbu53pat/dbucopy.prg
--- dbu53ori/dbucopy.prg	1996-05-20 05:31:00.000000000 +0200
+++ dbu53pat/dbucopy.prg	2009-06-10 01:35:15.000000000 +0200
@@ -62,8 +62,8 @@
 	filename = ""
 
 	* only copy and append use a list of text files
-	DECLARE txt_list[adir("*.TXT") + 20]		&& directory of text files
-	array_dir("*.TXT",txt_list)					&& fill array with filenames
+	DECLARE txt_list[adir("*.txt") + 20]		&& directory of text files
+	array_dir("*.txt",txt_list)					&& fill array with filenames
 
 	* set up for multi-box
 	DECLARE boxarray[10]
@@ -104,7 +104,7 @@
 
 	* DBF for normal mode
 	files = "dbf_list"
-	def_ext = ".DBF"
+	def_ext = ".dbf"
 
 	* when is a filename acceptable?
 	fi_done = "not_empty('filename')"
@@ -742,7 +742,7 @@
 			cur_el = 1
 			rel_row = 0
 			files = "dbf_list"
-			def_ext = ".DBF"
+			def_ext = ".dbf"
 			filelist(1)			&& display new list
 
 		ELSE
@@ -757,7 +757,7 @@
 				cur_el = 1
 				rel_row = 0
 				files = "txt_list"
-				def_ext = ".TXT"
+				def_ext = ".txt"
 				filelist(1)		&& display new list
 
 			ENDIF
@@ -820,7 +820,7 @@
 			cur_el = 1
 			rel_row = 0
 			files = "dbf_list"
-			def_ext = ".DBF"
+			def_ext = ".dbf"
 			filelist(1)			&& display new list
 
 		ELSE
@@ -835,7 +835,7 @@
 				cur_el = 1
 				rel_row = 0
 				files = "txt_list"
-				def_ext = ".TXT"
+				def_ext = ".txt"
 				filelist(1)		&& display new list
 
 			ENDIF
diff -u dbu53ori/dbustru.prg dbu53pat/dbustru.prg
--- dbu53ori/dbustru.prg	1996-05-20 05:31:00.000000000 +0200
+++ dbu53pat/dbustru.prg	2009-06-10 01:43:02.000000000 +0200
@@ -811,7 +811,7 @@
 			is_insert = .F.
 			filename = stru_name
 
-			IF filebox(".DBF", "dbf_list", "stru_title",;
+			IF filebox(".dbf", "dbf_list", "stru_title",;
 					   "do_modstru", .T., 13) <> 0
 				* structure created or altered
 				stru_name = filename
@@ -1215,7 +1215,7 @@
 		USE
 
 		* remember if file existed in current directory before
-		add_name = .NOT. FILE(name(filename) + ".DBF")
+		add_name = .NOT. FILE(name(filename) + ".dbf")
 
 		IF FILE(filename)
 			* file exists..modify structure and save old data
@@ -1236,11 +1236,11 @@
 
 			* establish temp filespec and dbt specs in same directory
 			name_temp = SUBSTR(filename, 1, RAT("\", filename)) +;
-						"DDBBUUUU.TMP"
+						"ddbbuuuu.tmp"
 			dbt_spec = SUBSTR(filename, 1, RAT(".", filename)) +;
-					   "DBT"
+					   "dbt"
 			dbt_temp = SUBSTR(name_temp, 1, RAT(".", name_temp)) +;
-					   "DBT"
+					   "dbt"
 
 			IF FILE(dbt_spec)
 				* data file contains memo fields
@@ -1320,8 +1320,8 @@
          CREATE &filename FROM ddbbuuuu.ext ALIAS cAlias
 			USE
 
-			IF AT(".DBF", filename) = LEN(filename) - 3 .AND.;
-			   FILE(name(filename) + ".DBF") .AND. add_name
+			IF AT(".dbf", Lower(filename)) = LEN(filename) - 3 .AND.;
+			   FILE(name(filename) + ".dbf") .AND. add_name
 				* add only .dbf files in the current directory
 				i = afull(dbf_list) + 1
 
diff -u dbu53ori/dbuutil.prg dbu53pat/dbuutil.prg
--- dbu53ori/dbuutil.prg	1996-05-20 05:31:00.000000000 +0200
+++ dbu53pat/dbuutil.prg	2009-06-12 17:41:51.000000000 +0200
@@ -950,7 +950,7 @@
 		SET KEY 24 TO clear_gets
 
 		* call entry in place function
-		name_temp = enter_rc(M->filename,M->irow,M->wl+9,64,"@K!S20",M->color9)
+		name_temp = enter_rc(M->filename,M->irow,M->wl+9,64,"@KS20",M->color9)
 
 		* release down arrow
 		SET KEY 24 TO
@@ -2152,7 +2152,7 @@
 IF FILE(M->filename)
 	* only if the file exists
 
-	IF INDEXEXT() = ".NTX"
+	IF INDEXEXT() = ".ntx"
 		* Clipper index file format
 		k_pos = 23
 
diff -u dbu53ori/dbuview.prg dbu53pat/dbuview.prg
--- dbu53ori/dbuview.prg	1996-05-20 05:31:00.000000000 +0200
+++ dbu53pat/dbuview.prg	2009-06-12 14:43:06.000000000 +0200
@@ -1102,7 +1102,7 @@
 		KEYBOARD CHR(M->keystroke)
 
 		* entry in place
-		filename = enter_rc(dbf[M->cur_area],M->f_row,M->d_col,64,"@K!S8",;
+		filename = enter_rc(dbf[M->cur_area],M->f_row,M->d_col,64,"@KS8",;
 							M->color1)
 
 		IF .NOT. EMPTY(M->filename)
@@ -1110,7 +1110,7 @@
 
 			IF .NOT. (RAT(".", M->filename) > RAT("\", M->filename))
 				* no extension entered..provide default
-				filename = M->filename + ".DBF"
+				filename = M->filename + ".dbf"
 
 			ENDIF
 
@@ -1141,7 +1141,7 @@
 
 	ELSE
 		* insert or enter or menu selection..use filebox
-		ret_val = filebox(".DBF", "dbf_list", "dopen_titl",;
+		ret_val = filebox(".dbf", "dbf_list", "dopen_titl",;
 						  "do_opendbf", .F., 8) <> 0
 
 	ENDIF
@@ -1269,7 +1269,7 @@
 	KEYBOARD CHR(M->keystroke)
 
 	* entry in place
-	filename = enter_rc(M->org_file,M->d_row,M->d_col,64,"@K!S8",M->color1)
+	filename = enter_rc(M->org_file,M->d_row,M->d_col,64,"@KS8",M->color1)
 
 	IF .NOT. EMPTY(M->filename)
 		* something entered
@@ -2789,7 +2789,7 @@
 * get user entered file name..will default to primary + ".VEW"
 IF EMPTY(M->view_file) .AND. .NOT. EMPTY(dbf[1])
 	* default to name of primary data file
-	filename = name(dbf[1]) + ".VEW"
+	filename = name(dbf[1]) + ".vew"
 
 ELSE
 	* whatever the last view was
@@ -2798,7 +2798,7 @@
 ENDIF
 
 * it's better in a box
-filebox(".VEW", "vew_list", "vcrea_titl", "do_creavew", .T., 8)
+filebox(".vew", "vew_list", "vcrea_titl", "do_creavew", .T., 8)
 
 * restore help code
 help_code = M->old_help
@@ -2840,7 +2840,7 @@
 stat_msg("Generating View File")
 
 * add new .VEW files to vew_list if created in current directory only
-add_name = .NOT. FILE(name(filename) + ".VEW")
+add_name = .NOT. FILE(name(filename) + ".vew")
 
 * create structure extended template
 CREATE ddbbuuuu.ext
@@ -3009,8 +3009,8 @@
 USE
 
 * add file name to array of view files
-IF AT(".VEW", filename) = LEN(filename) - 3 .AND.;
-   FILE(name(filename) + ".VEW") .AND. add_name
+IF AT(".vew", Lower(filename)) = LEN(filename) - 3 .AND.;
+   FILE(name(filename) + ".vew") .AND. add_name
 	* add only new .VEW files in the current directory
 
 	* determine number of first empty element
@@ -3080,7 +3080,7 @@
 IF M->from_view
 	* called from set_view
 
-	IF filebox(".VEW", "vew_list", "vopen_titl", "do_openvew", .F., 8) <> 0
+	IF filebox(".vew", "vew_list", "vopen_titl", "do_openvew", .F., 8) <> 0
 		* indicate new View has been set
 		keystroke = 13