diff --git a/downloader.lua b/downloader.lua
index 8134cab..871f38d 100644
--- a/downloader.lua
+++ b/downloader.lua
@@ -1,19 +1,17 @@
 local component=require("component")
 
-function DownloadFromGitHub(RepoName,Branch,FileAddress)
-    local hwtable=component.list()
+local function doRealDownload(url)
+    local hwtable=component.list("internet")
     local found=false
     for k,v in pairs(hwtable) do
-        if(v=="internet") then
-            found=true
-        end
+        found=true
     end
     if(not found) then
         error("The downloader requires an Internet card.")
     end
 
-    local url="https://raw.githubusercontent.com/" .. RepoName .. "/" .. Branch .. "/" .. FileAddress
     local handle=component.internet.request(url)
+
     local ans=""
     while true do
         local tmp=handle.read()
@@ -25,6 +23,11 @@ function DownloadFromGitHub(RepoName,Branch,FileAddress)
     return ans
 end
 
+function DownloadFromGitHub(RepoName,Branch,FileAddress)
+    local url="https://raw.githubusercontent.com/" .. RepoName .. "/" .. Branch .. "/" .. FileAddress
+    return doRealDownload(url)
+end
+
 function DownloadFromOCS(FileAddress)
     return DownloadFromGitHub("Kiritow/OpenComputerScripts","master",FileAddress)
 end
@@ -43,5 +46,4 @@ function WriteStringToFile(StringValue,FileName,IsAppend)
     handle:close()
 
     return true,"Success"
-end
-
+end
\ No newline at end of file
diff --git a/update.lua b/update.lua
index c1a1cae..c5d7bf8 100644
--- a/update.lua
+++ b/update.lua
@@ -1,7 +1,8 @@
--- From Downloader
+---------------------------- Begin of From Downloader
+
 local component=require("component")
 
-function DownloadFromGitHub(RepoName,Branch,FileAddress)
+local function doRealDownload(url)
     local hwtable=component.list("internet")
     local found=false
     for k,v in pairs(hwtable) do
@@ -11,8 +12,8 @@ function DownloadFromGitHub(RepoName,Branch,FileAddress)
         error("The downloader requires an Internet card.")
     end
 
-    local url="https://raw.githubusercontent.com/" .. RepoName .. "/" .. Branch .. "/" .. FileAddress
     local handle=component.internet.request(url)
+
     local ans=""
     while true do
         local tmp=handle.read()
@@ -24,6 +25,11 @@ function DownloadFromGitHub(RepoName,Branch,FileAddress)
     return ans
 end
 
+function DownloadFromGitHub(RepoName,Branch,FileAddress)
+    local url="https://raw.githubusercontent.com/" .. RepoName .. "/" .. Branch .. "/" .. FileAddress
+    return doRealDownload(url)
+end
+
 function DownloadFromOCS(FileAddress)
     return DownloadFromGitHub("Kiritow/OpenComputerScripts","master",FileAddress)
 end
@@ -44,7 +50,7 @@ function WriteStringToFile(StringValue,FileName,IsAppend)
     return true,"Success"
 end
 
--- From Downloader
+----------------------------- End of From Downloader
 
 local code_lst=
 {
diff --git a/util.lua b/util.lua
index d7b9192..25ee11d 100644
--- a/util.lua
+++ b/util.lua
@@ -1,4 +1,13 @@
 local component=require("component")
+local serialization = require("serialization")
+
+function serialize(value)
+    return serialization.serialize(value)
+end
+
+function unserialize(str)
+    return serialization.unserialize(str)
+end
 
 function getTableSize(t)
     local cnt=0
@@ -20,7 +29,7 @@ function proxy(componentType,beginWith)
     local t=component.list(componentType)
     local sz=getTableSize(t)
     if(sz==0) then
-        print("Query List is Empty")
+        print("proxy: Query List is Empty")
         return nil
     elseif(sz==1) then
         for k in pairs(t) do
@@ -28,11 +37,11 @@ function proxy(componentType,beginWith)
         end
     else
         if(beginWith == nil) then
-            print("beginWith value required.")
+            print("proxy: beginWith value required.")
             return nil
         end
         if(type(beginWith) ~= "string") then
-            print("beginWith is not string")
+            print("proxy: beginWith is not string")
             return nil
         end
         local bsz=string.len(beginWith)
@@ -44,14 +53,14 @@ function proxy(componentType,beginWith)
                     traw=rawproxy(k)
                     cnt=1
                 else
-                    print("Found more than 1 target.")
+                    print("proxy: Found more than 1 target.")
                     return nil
                 end
             end
         end
 
         if(cnt==0) then 
-            print("Not found with beginWith value")
+            print("proxy: Not found with beginWith value")
             return nil
         else
             return traw