diff -ur libofx-0.8.3/lib/ofx_preproc.cpp win32-libofx-0.8.3/lib/ofx_preproc.cpp
--- libofx-0.8.3/lib/ofx_preproc.cpp	Tue Jan  9 02:38:33 2007
+++ win32-libofx-0.8.3/lib/ofx_preproc.cpp	Thu Feb  8 13:53:59 2007
@@ -20,8 +20,14 @@
 #include <iostream>
 #include <fstream>
 #include <stdlib.h>
+#include <io.h> // for mktemp() on win32/mingw
 #include <stdio.h>
 #include <string>
+#ifdef OS_WIN32
+#include <windows.h> // for GetModuleFileName()
+#undef ERROR
+#undef DELETE
+#endif
 #include "ParserEventGeneratorKit.h"
 #include "libofx.h"
 #include "messages.hh"
@@ -51,6 +57,57 @@
   "~/"};
 const unsigned int READ_BUFFER_SIZE = 1024;
 
+#ifdef OS_WIN32
+# define DIR_SEPARATOR_S "\\"
+#else
+# define DIR_SEPARATOR_S "/"
+#endif
+// The filenames can get quite long on windows.
+#define TMPFILEBUFSIZE 120
+
+std::string get_tmp_dir()
+{
+  // Tries to mimic the behaviour of
+  // http://developer.gnome.org/doc/API/2.0/glib/glib-Miscellaneous-Utility-Functions.html#g-get-tmp-dir
+#ifdef OS_WIN32
+  char *var;
+  var = getenv("TMPDIR");
+  if (var) return var;
+  var = getenv("TMP");
+  if (var) return var;
+  var = getenv("TEMP");
+  if (var) return var;
+  return "C:\\";
+#else
+  return "/tmp";
+#endif
+}
+
+#ifdef OS_WIN32
+std::string get_dtd_installation_directory()
+{
+  // Partial implementation of 
+  // http://developer.gnome.org/doc/API/2.0/glib/glib-Windows-Compatibility-Functions.html#g-win32-get-package-installation-directory
+  char ch_fn[MAX_PATH], *p;
+  std::string str_fn;
+
+  if (!GetModuleFileName(NULL, ch_fn, MAX_PATH)) return "";
+
+  if ((p = strrchr(ch_fn, '\\')) != NULL)
+    *p = '\0';
+
+  p = strrchr(ch_fn, '\\');
+  if (p && (_stricmp(p+1, "bin") == 0 ||
+            _stricmp(p+1, "lib") == 0))
+    *p = '\0';
+
+  str_fn = ch_fn;
+  str_fn += "\\share\\libofx\\dtd\\";
+
+  return str_fn;
+}
+#endif
+
 /** @brief File pre-processing of OFX AND for OFC files 
 *
 * Takes care of comment striping, dtd locating, etc.
@@ -66,7 +123,7 @@
   char buffer[READ_BUFFER_SIZE];
   string s_buffer;
   char *filenames[3];
-  char tmp_filename[50];
+  char tmp_filename[TMPFILEBUFSIZE];
 
   libofx_context=(LibofxContext*)ctx;
 
@@ -75,8 +132,10 @@
     message_out(DEBUG, string("ofx_proc_file():Opening file: ")+ p_filename);
     
     input_file.open(p_filename);
-    strncpy(tmp_filename,"/tmp/libofxtmpXXXXXX",50);
-    mkstemp(tmp_filename);
+    std::string tmpdir = get_tmp_dir();
+    std::string tmpfiletemplate = tmpdir + DIR_SEPARATOR_S "libofxtmpXXXXXX";
+    strncpy(tmp_filename,tmpfiletemplate.c_str(),TMPFILEBUFSIZE);
+    mktemp(tmp_filename);
     tmp_file.open(tmp_filename);
 
     message_out(DEBUG,"ofx_proc_file(): Creating temp file: "+string(tmp_filename));
@@ -203,7 +262,7 @@
   ofstream tmp_file;
   string s_buffer;
   char *filenames[3];
-  char tmp_filename[50];
+  char tmp_filename[TMPFILEBUFSIZE];
   int pos;
   LibofxContext *libofx_context;
 
@@ -216,8 +275,10 @@
   }
   s_buffer=string(s, size);
 
-  strncpy(tmp_filename,"/tmp/libofxtmpXXXXXX",50);
-  mkstemp(tmp_filename);
+  std::string tmpdir = get_tmp_dir();
+  std::string tmpfiletemplate = tmpdir + DIR_SEPARATOR_S "libofxtmpXXXXXX";
+  strncpy(tmp_filename,tmpfiletemplate.c_str(),TMPFILEBUFSIZE);
+  mktemp(tmp_filename);
   tmp_file.open(tmp_filename);
 
   message_out(DEBUG,"ofx_proc_file(): Creating temp file: "+string(tmp_filename));
@@ -439,8 +500,16 @@
   string dtd_path_filename;
   bool dtd_found=false;
 
-  for(i=0;i<DTD_SEARCH_PATH_NUM&&dtd_found==false;i++){
-    dtd_path_filename=DTD_SEARCH_PATH[i];
+  for(i=-1;i<DTD_SEARCH_PATH_NUM&&dtd_found==false;i++){
+    if (i==-1) {
+#ifdef OS_WIN32
+      dtd_path_filename=get_dtd_installation_directory();
+#else
+      continue;
+#endif
+    } else {
+      dtd_path_filename=DTD_SEARCH_PATH[i];
+    }
     dtd_path_filename.append(dtd_filename);
     dtd_file.clear();
     dtd_file.open(dtd_path_filename.c_str());