Remove all reference to '%HOME%'.

(use only '%APPDATA%' as base reference).

README.md

@@ -143,16 +143,15 @@ The trace-level and other settings are controlled by a config-file
 `wsock_trace`. This file is searched along these places until found:
   *  The file pointed to by `%WSOCK_TRACE`.
   *  The current directory.
-  *  The `%HOME` directory.
-  *  Then finally the `%APPDATA` directory.
+  *  Then finally the `%APPDATA%` directory.
 
 `wsock_trace` is read in **[init.c](https://github.com/gvanem/wsock-trace/blob/master/src/init.c)**
 at startup. Read it's contents; the comments therein should be self-explanatory.<br>
 If `wsock_trace` is not found in one of the above directories, the default
 `trace_level` is set to 1.
 
 There is currently no `install.bat` file for Wsock-trace. So you should copy the following files (here at GitHub) to your <br>
-`%HOME` or `%APPDATA` directory:
+`%APPDATA%` directory:
 ```
   wsock_trace
   GeoIP.csv
@@ -170,9 +169,6 @@ These environment variables are on the form:
   * `<drive>:\Documents and Settings\<User Name>\ProgramData`.  (Win-XP)
   * `<drive>:\Users\<User Name>\AppData\Roaming`.               (Win-Vista+)
 
-Since it's a confusing subject what a program's configuration directory should be,
-it's best to define a `%HOME%` to point to the excact place for such config-files.
-
 ### Running samples
 
 Example output from `src/ws_tool.exe test` (built with MSVC):
@@ -288,7 +284,7 @@ And another example from [**C-ares**](https://github.com/c-ares/c-ares)'s
 
 By default, the tracing of `htons()`,`htonl()`, `ntohs()` and `ntohl()` are
 excluded from the trace.<br>
-You can edit the `%HOME/wsock_trace` config-file and exclude whatever calls you like.
+You can edit the `%APPDATA%/wsock_trace` config-file and exclude whatever calls you like.
 And the 2 traces above is showing the effect of the config-value `compact = 1`.
 
 A more eleborated example from 2 **[OpenVPN](https://openvpn.net/)** programs; a client and a

src/init.c

@@ -538,7 +538,7 @@ BOOL exclude_list_add (const char *name, unsigned exclude_which)
  *
  * First try file pointed to by %WSOCK_TRACE%,
  * then in current_dir.
- * then in %APPDATA% or %HOME%.
+ * then in %APPDATA%.
  */
 
 /*
@@ -555,7 +555,7 @@ static char fname [MAX_PATH];
 
 static FILE *open_config_file (const char *base_name)
 {
-  char *home, *env = getenv_expand ("WSOCK_TRACE", fname, sizeof(fname));
+  char *appdata, *env = getenv_expand ("WSOCK_TRACE", fname, sizeof(fname));
   FILE *fil;
 
   TRACE (2, "%%WSOCK_TRACE%%=%s.\n", env);
@@ -574,12 +574,10 @@ static FILE *open_config_file (const char *base_name)
   fil = fopen (fname, "r");
   if (!fil)
   {
-    home = getenv ("APPDATA");
-    if (!home)
-       home = getenv ("HOME");
-    if (home)
+    appdata = getenv ("APPDATA");
+    if (appdata)
     {
-      snprintf (fname, sizeof(fname), "%s\\%s", home, base_name);
+      snprintf (fname, sizeof(fname), "%s\\%s", appdata, base_name);
       fil = fopen (fname, "r");
     }
   }