diff --git a/development/Win32/packaging/clean_dvi.py b/development/Win32/packaging/clean_dvi.py
index 18f7b1a3db..39fde890d2 100644
--- a/development/Win32/packaging/clean_dvi.py
+++ b/development/Win32/packaging/clean_dvi.py
@@ -45,16 +45,22 @@ def error(message):
 
 
 def manipulated_dtl(data):
-    psfile_re = re.compile(r'(.*PSfile=")(.*)(" llx=.*)')
+    psfile_re = re.compile(r'(special1 +)([0-9]+)( +\'PSfile=")(.*)(" llx=.*)')
 
     lines = data.split('\n')
     for i in range(len(lines)):
         line = lines[i]
-        match = psfile_re.search(line)
+        match = psfile_re.match(line)
         if match != None:
-            file = match.group(2).replace('"', '')
-            lines[i] = '%s%s%s' \
-                       % ( match.group(1), file, match.group(3) )
+            file = match.group(4)
+            filelen = len(file)
+            file = file.replace('"', '')
+            # Don't forget to update the length of the string too...
+            strlen = int(match.group(2)) - (filelen - len(file))
+
+            lines[i] = '%s%d%s%s%s' \
+                       % ( match.group(1), strlen, match.group(3),
+                           file, match.group(5) )
 
     return '\n'.join(lines)
 
diff --git a/development/Win32/packaging/dtl/Makefile b/development/Win32/packaging/dtl/Makefile
index e0572600d7..e6b9fc199a 100644
--- a/development/Win32/packaging/dtl/Makefile
+++ b/development/Win32/packaging/dtl/Makefile
@@ -3,6 +3,14 @@
 # Thu 9 March 1995
 # Geoffrey Tobin
 # Nelson H. F. Beebe
+#
+# Changes 27 July 2005 by Angus Leeming to enable the Makefile to
+# work out of the box on both *nix and Windows machines under
+# the MinSYS environment.
+#
+# The Makefile can also be used unaltered to build a Windows executable
+# from a Linux box if make is invoked as:
+# $ make EXEEXT='.exe' CC='i386-mingw32-gcc'
 #=======================================================================
 
 BINDIR          = /usr/local/bin
@@ -16,8 +24,9 @@ COL		= col -b
 CP              = /bin/cp
 DITROFF		= ditroff
 DITROFF		= groff
-DT2DV		= dt2dv.exe
-DV2DT		= dv2dt.exe
+EXEEXT		= .exe
+DT2DV		= dt2dv$(EXEEXT)
+DV2DT		= dv2dt$(EXEEXT)
 EXES 		= $(DT2DV) $(DV2DT)
 LDFLAGS         = -s
 LDFLAGS         =
@@ -51,19 +60,19 @@ all:  dtl check
 
 doc:  dt2dv.hlp dv2dt.hlp dt2dv.ps dv2dt.ps
 
-dtl:  $(EXES)
+dtl:  dv2dt dt2dv
 
 check tests:  hello example tripvdu edited
 
-$(DV2DT): dv2dt.o dtl.h
-	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ dv2dt.o
+dv2dt: dv2dt.o dtl.h
+	$(CC) $(CFLAGS) $(LDFLAGS) -o $(DV2DT) dv2dt.o
 
-$(DT2DV): dt2dv.o dtl.h
-	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ dt2dv.o
+dt2dv: dt2dv.o dtl.h
+	$(CC) $(CFLAGS) $(LDFLAGS) -o $(DT2DV) dt2dv.o
 
-hello:  hello.dtl $(EXES)
-	./dt2dv hello.dtl hello2.dvi
-	./dv2dt hello2.dvi hello2.dtl
+hello:  hello.dtl dv2dt dt2dv
+	./$(DT2DV) hello.dtl hello2.dvi
+	./$(DV2DT) hello2.dvi hello2.dtl
 	-@diff hello.dtl hello2.dtl > hello.dif
 	@if [ -s hello.dif ] ; \
 	then echo ERROR: differences in hello.dif ; \
@@ -72,11 +81,11 @@ hello:  hello.dtl $(EXES)
 
 hello.dtl:  hello.tex
 	tex hello
-	./dv2dt hello.dvi hello.dtl
+	./$(DV2DT) hello.dvi hello.dtl
 
-example:  example.dtl $(EXES)
-	./dt2dv example.dtl example2.dvi
-	./dv2dt example2.dvi example2.dtl
+example:  example.dtl dv2dt dt2dv
+	./$(DT2DV) example.dtl example2.dvi
+	./$(DV2DT) example2.dvi example2.dtl
 	-@diff example.dtl example2.dtl > example.dif
 	@if [ -s example.dif ] ; \
 	then echo ERROR: differences in example.dif ; \
@@ -85,11 +94,11 @@ example:  example.dtl $(EXES)
 
 example.dtl:  example.tex
 	tex example
-	./dv2dt example.dvi example.dtl
+	./$(DV2DT) example.dvi example.dtl
 
-tripvdu:  tripvdu.dtl $(EXES)
-	./dt2dv tripvdu.dtl tripvdu2.dvi
-	./dv2dt tripvdu2.dvi tripvdu2.dtl
+tripvdu:  tripvdu.dtl dv2dt dt2dv
+	./$(DT2DV) tripvdu.dtl tripvdu2.dvi
+	./$(DV2DT) tripvdu2.dvi tripvdu2.dtl
 	-@diff tripvdu.dtl tripvdu2.dtl > tripvdu.dif
 	@if [ -s tripvdu.dif ] ; \
 	then echo ERROR: differences in tripvdu.dif ; \
@@ -98,15 +107,15 @@ tripvdu:  tripvdu.dtl $(EXES)
 
 tripvdu.dtl:  tripvdu.tex
 	tex tripvdu
-	./dv2dt tripvdu.dvi tripvdu.dtl
+	./$(DV2DT) tripvdu.dvi tripvdu.dtl
 
 # edited.txt is already a dtl file.
 
-edited:  edited.txt $(EXES)
-	./dt2dv edited.txt edited.dvi
-	./dv2dt edited.dvi edited2.dtl
-	./dt2dv edited2.dtl edited2.dvi
-	./dv2dt edited2.dvi edited3.dtl
+edited:  edited.txt dv2dt dt2dv
+	./$(DT2DV) edited.txt edited.dvi
+	./$(DV2DT) edited.dvi edited2.dtl
+	./$(DT2DV) edited2.dtl edited2.dvi
+	./$(DV2DT) edited2.dvi edited3.dtl
 	@if [ -s edited.dif ] ; \
 	then echo ERROR : differences in edited.dif ; \
 	else $(RM) edited.dif ; \
diff --git a/development/Win32/packaging/dtl/dt2dv.c b/development/Win32/packaging/dtl/dt2dv.c
index a4ab23a9c6..82acd7d5bb 100644
--- a/development/Win32/packaging/dtl/dt2dv.c
+++ b/development/Win32/packaging/dtl/dt2dv.c
@@ -1,9 +1,11 @@
 /* dt2dv - convert human-readable "DTL" file to DVI format
          - this is intended to invert dv2dt version 0.6.0
-   - version 0.6.1 - 14:38 GMT +11  Thu 9 March 1995
+   - version 0.6.2 - 27 July 2005
    - Geoffrey Tobin    G.Tobin@ee.latrobe.edu.au
    - fixes:  Michal Tomczak-Jaegermann    ntomczak@vm.ucs.ualberta.ca
              Nelson H. F. Beebe    beebe@math.utah.edu
+	     Angus Leeming leeming@lyx.org: Enable dt2dv to handle
+	     .dvi files containing strings longer than 1024 chars.
    - Reference:  "The DVI Driver Standard, Level 0",
                  by  The TUG DVI Driver Standards Committee.
                  Appendix A, "Device-Independent File Format".
@@ -2223,7 +2225,7 @@ xfer_len_string
 /* transfer (length and) quoted string from dtl to dvi file, */
 /* return number of bytes written to dvi file. */
 {
-  U4 k, k2;
+  U4 k, k2, lstr_maxsize;
   Lstring lstr;
 
   if (debug)
@@ -2232,12 +2234,13 @@ xfer_len_string
     fprintf (stderr, "(xfer_len_string) : entering xfer_len_string.\n");
   }
 
-  init_Lstring (&lstr, LSIZE);
-
   /* k[n] : length of special string */
 
   k = get_unsigned (dtl);
 
+  lstr_maxsize = (k > LSIZE) ? k : LSIZE;
+  init_Lstring (&lstr, lstr_maxsize);
+
   if (debug)
   {
     PRINT_PROGNAME;