diff --git a/programs/develop/libraries/http/examples/downloader.asm b/programs/develop/libraries/http/examples/downloader.asm
index 02d51a38a9..10bcf37cbf 100644
--- a/programs/develop/libraries/http/examples/downloader.asm
+++ b/programs/develop/libraries/http/examples/downloader.asm
@@ -61,7 +61,7 @@ download:
 
         DEBUGF  1, "Starting download\n"
 
-        invoke  HTTP_get, params
+        invoke  HTTP_get, params, 0
         test    eax, eax
         jz      fail
         mov     [identifier], eax
diff --git a/programs/develop/libraries/http/http.asm b/programs/develop/libraries/http/http.asm
index ccdf4b20ee..398d3558d4 100644
--- a/programs/develop/libraries/http/http.asm
+++ b/programs/develop/libraries/http/http.asm
@@ -124,11 +124,12 @@ lib_init: ;//////////////////////////////////////////////////////////////////;;
 
 
 ;;================================================================================================;;
-proc HTTP_get URL ;///////////////////////////////////////////////////////////////////////////////;;
+proc HTTP_get URL, add_header ;///////////////////////////////////////////////////////////////////;;
 ;;------------------------------------------------------------------------------------------------;;
 ;? Initiates a HTTP connection, using 'GET' method.                                               ;;
 ;;------------------------------------------------------------------------------------------------;;
-;> URL = pointer to ASCIIZ URL                                                                    ;;
+;> URL          = pointer to ASCIIZ URL                                                           ;;
+;> add_header   = pointer to additional header parameters (ASCIIZ), or null for none.             ;;
 ;;------------------------------------------------------------------------------------------------;;
 ;< eax = 0 (error) / buffer ptr                                                                   ;;
 ;;================================================================================================;;
@@ -149,6 +150,7 @@ endl
         jz      .error
         mov     [hostname], eax
         mov     [pageaddr], ebx
+        mov     [port], ecx
 
 ; Do we need to use a proxy?
         cmp     [proxyAddr], 0
@@ -157,7 +159,6 @@ endl
   .proxy_done:
 
 ;;;;
-        mov     [port], 80      ;;;; FIXME
 
 ; Connect to the other side.
         stdcall open_connection, [hostname], [port]
@@ -186,6 +187,12 @@ endl
         mov     esi, [hostname]
         copy_till_zero
 
+        mov     esi, [add_header]
+        test    esi, esi
+        jz      @f
+        copy_till_zero
+  @@:
+
         mov     esi, str_close
         mov     ecx, str_close.length
         rep     movsb
@@ -220,11 +227,12 @@ endp
 
 
 ;;================================================================================================;;
-proc HTTP_head URL ;//////////////////////////////////////////////////////////////////////////////;;
+proc HTTP_head URL, add_header ;//////////////////////////////////////////////////////////////////;;
 ;;------------------------------------------------------------------------------------------------;;
 ;? Initiates a HTTP connection, using 'HEAD' method.                                              ;;
 ;;------------------------------------------------------------------------------------------------;;
-;> URL = pointer to ASCIIZ URL                                                                    ;;
+;> URL          = pointer to ASCIIZ URL                                                           ;;
+;> add_header   = pointer to additional header parameters (ASCIIZ), or null for none.             ;;
 ;;------------------------------------------------------------------------------------------------;;
 ;< eax = 0 (error) / buffer ptr                                                                   ;;
 ;;================================================================================================;;
@@ -244,6 +252,7 @@ endl
         jz      .error
         mov     [hostname], eax
         mov     [pageaddr], ebx
+        mov     [port], ecx
 
 ; Do we need to use a proxy?
         cmp     [proxyAddr], 0
@@ -253,7 +262,6 @@ endl
   .proxy_done:
 
 ;;;;
-        mov     [port], 80      ;;;; FIXME
 
 ; Connect to the other side.
         stdcall open_connection, [hostname], [port]
@@ -282,6 +290,12 @@ endl
         mov     esi, [hostname]
         copy_till_zero
 
+        mov     esi, [add_header]
+        test    esi, esi
+        jz      @f
+        copy_till_zero
+  @@:
+
         mov     esi, str_close
         mov     ecx, str_close.length
         rep     movsb
@@ -315,11 +329,12 @@ endp
 
 
 ;;================================================================================================;;
-proc HTTP_post URL, content_type, content_length ;////////////////////////////////////////////////;;
+proc HTTP_post URL, add_header, content_type, content_length ;////////////////////////////////////;;
 ;;------------------------------------------------------------------------------------------------;;
 ;? Initiates a HTTP connection, using 'GET' method.                                               ;;
 ;;------------------------------------------------------------------------------------------------;;
 ;> URL                  = pointer to ASCIIZ URL                                                   ;;
+;> add_header           = pointer to additional header parameters (ASCIIZ), or null for none.     ;;
 ;> content_type         = pointer to ASCIIZ string containing content type                        ;;
 ;> content_length       = length of content (in bytes)                                            ;;
 ;;------------------------------------------------------------------------------------------------;;
@@ -341,6 +356,7 @@ endl
         jz      .error
         mov     [hostname], eax
         mov     [pageaddr], ebx
+        mov     [port], ecx
 
 ; Do we need to use a proxy?
         cmp     [proxyAddr], 0
@@ -350,7 +366,6 @@ endl
   .proxy_done:
 
 ;;;;
-        mov     [port], 80      ;;;; FIXME
 
 ; Connect to the other side.
         stdcall open_connection, [hostname], [port]
@@ -391,7 +406,13 @@ endl
         rep     movsb
 
         mov     esi, [content_type]
-        rep     movsb
+        copy_till_zero
+
+        mov     esi, [add_header]
+        test    esi, esi
+        jz      @f
+        copy_till_zero
+  @@:
 
         mov     esi, str_close
         mov     ecx, str_close.length
@@ -1264,9 +1285,11 @@ endl
 
         mov     eax, [hostname]
         mov     ebx, [pageaddr]
+        mov     ecx, 80                 ;;;; FIXME
 
         DEBUGF  1, "hostname: %s\n", eax
         DEBUGF  1, "pageaddr: %s\n", ebx
+        DEBUGF  1, "port: %u\n", ecx
 
         ret
 
diff --git a/programs/develop/libraries/http/http_en.txt b/programs/develop/libraries/http/http_en.txt
index dd4c2d93ca..0a35fd16a8 100644
--- a/programs/develop/libraries/http/http_en.txt
+++ b/programs/develop/libraries/http/http_en.txt
@@ -1,16 +1,19 @@
 
-get(*url);
+get(*url, *add_header);
 	*url = pointer to ASCIIZ URL
+	*add_header = pointer to ASCIIZ additional header parameters, or null for none.
 Initiates a HTTP connection, using 'GET' method.
  - returns 0 on error, identifier otherwise.
 
-head(*url);
+head(*url, *add_header);
 	*url = pointer to ASCIIZ URL
+	*add_header = pointer to ASCIIZ additional header parameters, or null for none.	
 Initiate a HTTP connection, using 'HEAD' method.
  - returns 0 on error, identifier otherwise
 
-post(*url, *content-type, content-length);
+post(*url, *add_header, *content-type, content-length);
 	*url = pointer to ASCIIZ URL
+	*add_header = pointer to ASCIIZ additional header parameters, or null for none.	
 	*content-type = pointer to ASCIIZ string containing content type.
 	content-length = length of the content (in bytes).
 Initiate a HTTP connection, using 'POST' method.