diff --git a/web.config b/web.config
index dda39fa3aa..91eba6bd8d 100644
--- a/web.config
+++ b/web.config
@@ -1,87 +1,104 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <configuration>
   <system.webServer>          
+    <httpRedirect enabled="false" destination="" httpResponseStatus="Permanent" />
     <rewrite>
       <rules>
         <rule name="rule 1v" stopProcessing="true">
-          <match url="^certificates/$"  />
-          <action type="Rewrite" url="/certificates/index.php?id=%1"  />
+          <match url="^certificates/$" />
+          <action type="Rewrite" url="certificates/index.php?id=%1" appendQueryString="false" />
         </rule>
-        <rule name="rule 2v" stopProcessing="true">
-          <match url="^courses/([^/]+)/?$"  />
-          <action type="Rewrite" url="/main/course_home/course_home.php?cDir={R:1}"  appendQueryString="true" />
+        <rule name="rule 2v" enabled="true" stopProcessing="true">
+          <match url="^courses/([^/]+)/?$" />
+          <action type="Rewrite" url="main/course_home/course_home.php?cDir={R:1}" appendQueryString="true" />
         </rule>
-        <rule name="rule 3v" stopProcessing="true">
-          <match url="^courses/([^/]+)/index.php$"  />
-          <action type="Rewrite" url="/main/course_home/course_home.php?cDir={R:1}"  appendQueryString="true" />
+        <rule name="rule 3v" enabled="true" stopProcessing="true">
+          <match url="^courses/([^/]+)/index.php$" />
+          <action type="Rewrite" url="main/course_home/course_home.php?cDir={R:1}" />
         </rule>
         <rule name="rule 4v" stopProcessing="true">
-          <match url="^courses/([^/]+)/scorm/(.*)$"  />
-          <action type="Rewrite" url="/main/document/download_scorm.php?doc_url=/{R:2}&amp;cDir={R:1}"  appendQueryString="true" />
+          <match url="^courses/([^/]+)/scorm/(.*([\.js|\.css|\.png|\.jpg|\.jpeg|\.gif]))$" />
+          <action type="Rewrite" url="app/courses/{R:1}/scorm/{R:2}" />
         </rule>
         <rule name="rule 5v" stopProcessing="true">
-          <match url="^courses/([^/]+)/document/certificates/(.*)$"  />
-          <action type="Rewrite" url="/app/courses/{R:1}/document/certificates/{R:2}"  appendQueryString="true" />
+           <match url="^courses/([^/]+)/scorm/(.*)$" />
+           <action type="Rewrite" url="main/document/download_scorm.php?doc_url=/{R:2}&amp;cDir={R:1}" />
         </rule>
-        <rule name="rule 6v" stopProcessing="true">
-          <match url="^courses/([^/]+)/document/(.*)$"  />
-          <action type="Rewrite" url="/main/document/download.php?doc_url=/{R:2}&amp;cDir={R:1}"  appendQueryString="true" />
+        <rule name="rule v6" stopProcessing="true">
+          <match url="^courses/([^/]+)/document/certificates/(.*)$" />
+          <action type="Rewrite" url="app/courses/{R:1}/document/certificates/{R:2}" />
         </rule>
-        <rule name="rule 7v" stopProcessing="true">
-          <match url="^courses/([^/]+)/upload/([^/]+)/(.*)$"  />
-          <action type="Rewrite" url="/main/document/download_uploaded_files.php?code={R:1}&amp;type={R:2}&amp;file={R:3}"  appendQueryString="true" />
+        <rule name="rule v7" stopProcessing="true">
+        <match url="^courses/([^/]+)/document/(.*)$" />
+          <action type="Rewrite" url="main/document/download.php?doc_url=/{R:2}&amp;cDir={R:1}" />
         </rule>
-        <rule name="rule 8v" stopProcessing="true">
-          <match url="^courses/([^/]+)/work/(.*)$"  />
-          <action type="Rewrite" url="/main/work/download.php?file=work/{R:2}&amp;cDir={R:1}"  appendQueryString="true" />
+        <rule name="rule v8" stopProcessing="true">
+          <match url="^courses/([^/]+)/upload/course_home_icons/(.*([\.js|\.css|\.png|\.jpg|\.jpeg|\.gif]))$" />
+          <action type="Rewrite" url="app/courses/{R:1}/upload/course_home_icons/{R:2}" />
         </rule>
-        <rule name="rule 9v" stopProcessing="true">
-          <match url="^courses/([^/]+)/course-pic85x85.png$"  />
-          <action type="Rewrite" url="/main/inc/ajax/course.ajax.php?a=get_course_image&amp;code={R:1}&amp;image=course_image_source"  appendQueryString="true" />
+        <rule name="rule v9" stopProcessing="true">
+          <match url="^courses/([^/]+)/upload/([^/]+)/(.*)$" />
+          <action type="Rewrite" url="main/document/download_uploaded_files.php?code={R:1}&amp;type={R:2}&amp;file={R:3}" />
         </rule>
-        <rule name="rule 10v" stopProcessing="true">
-          <match url="^courses/([^/]+)/course-pic.png$"  />
-          <action type="Rewrite" url="/main/inc/ajax/course.ajax.php?a=get_course_image&amp;code={R:1}&amp;image=course_image_large_source"  appendQueryString="true" />
+        <rule name="rule v10" stopProcessing="true">
+          <match url="^courses/([^/]+)/work/(.*)$" />
+          <action type="Rewrite" url="main/work/download.php?file=work/{R:2}&amp;cDir={R:1}" />
         </rule>
-        <rule name="rule 11v" stopProcessing="true">
-          <match url="^courses/([^/]+)/(.*)$"  />
-          <action type="Rewrite" url="/app/courses/{R:1}/{R:2}"  appendQueryString="true" />
+        <rule name="rule v11" stopProcessing="true">
+          <match url="^courses/([^/]+)/course-pic85x85.png$" />
+          <action type="Rewrite" url="main/inc/ajax/course.ajax.php?a=get_course_image&amp;code={R:1}&amp;image=course_image_source" appendQueryString="true" />
         </rule>
-        <rule name="rule 12v" stopProcessing="true">
-          <match url="^session/(\d{1,})/about/?$"  />
-          <action type="Rewrite" url="/main/session/about.php?session_id={R:1}"  />
+        <rule name="rule v12" stopProcessing="true">
+          <match url="^courses/([^/]+)/course-pic.png$" />
+          <action type="Rewrite" url="main/inc/ajax/course.ajax.php?a=get_course_image&amp;code={R:1}&amp;image=course_image_large_source" appendQueryString="true" />
         </rule>
-        <rule name="rule 13v" stopProcessing="true">
-          <match url="^badge/(\d{1,})"  />
-          <action type="Rewrite" url="/main/badge/issued.php?issue={R:1}"  />
+        <rule name="rule v13" stopProcessing="true">
+          <match url="^courses/([^/]+)/(.*)$" />
+          <action type="Rewrite" url="app/courses/{R:1}/{R:2}" appendQueryString="false" />
         </rule>
-        <rule name="rule 14v" stopProcessing="true">
-          <match url="^skill/(\d{1,})/user/(\d{1,})"  />
-          <action type="Rewrite" url="/main/badge/issued_all.php?skill={R:1}&amp;user={R:2}"  />
+        <rule name="rule v14" stopProcessing="true">
+          <match url="^session/(\d{1,})/about/?$" />
+          <action type="Rewrite" url="main/session/about.php?session_id={R:1}" appendQueryString="false" />
         </rule>
-        <rule name="rule 15v" stopProcessing="true">
-          <match url="^badge/(\d{1,})/user/(\d{1,})"  />
-          <action type="Rewrite" url="/main/badge/issued_all.php?skill={R:1}&amp;user={R:2}"  />
+        <rule name="rule v15" stopProcessing="true">
+          <match url="^course/(\d{1,})/about/?$" />
+          <action type="Rewrite" url="main/course_info/about.php?course_id={R:1}" appendQueryString="false" />
         </rule>
-        <rule name="rule 16v" stopProcessing="true">
-          <match url="^main/exercice/(.*)$"  />
-          <action type="Rewrite" url="/main/exercise/{R:1}"  appendQueryString="true" />
+        <rule name="rule v16" stopProcessing="true">
+          <match url="^badge/(\d{1,})" />
+          <action type="Rewrite" url="main/badge/issued.php?issue={R:1}" appendQueryString="false" />
         </rule>
-        <rule name="rule 17v" stopProcessing="true">
-          <match url="^main/newscorm/(.*)$"  />
-          <action type="Rewrite" url="/main/lp/{R:1}"  appendQueryString="true" />
+        <rule name="rule v17" stopProcessing="true">
+          <match url="^skill/(\d{1,})/user/(\d{1,})" />
+          <action type="Rewrite" url="main/badge/issued_all.php?skill={R:1}&amp;user={R:2}" appendQueryString="false" />
         </rule>
-        <rule name="rule 18v" stopProcessing="true">
-          <match url="^service/(\d{1,})$"  />
-          <action type="Rewrite" url="/plugin/buycourses/src/service_information.php?service_id={R:1}"  />
+        <rule name="rule v18" stopProcessing="true">
+          <match url="^badge/(\d{1,})/user/(\d{1,})" />
+          <action type="Rewrite" url="main/badge/issued_all.php?skill={R:1}&amp;user={R:2}" appendQueryString="false" />
         </rule>
-        <rule name="rule 19v" stopProcessing="true">
-          <match url="^([^/.]+)/?$"  />
-          <action type="Rewrite" url="/user.php?{R:1}"  />
+        <rule name="rule v19" stopProcessing="true">
+          <match url="^main/exercice/(.*)$" />
+          <action type="Rewrite" url="main/exercise/{R:1}" appendQueryString="true" />
         </rule>
-        <rule name="rule 20v" stopProcessing="true">
-          <match url="^(tests|.git)"  ignoreCase="true" />
-          <action type="Rewrite" url="/-"  />
+        <rule name="rule v20" stopProcessing="true">
+          <match url="^main/newscorm/(.*)$" />
+          <action type="Rewrite" url="main/lp/{R:1}" appendQueryString="true" />
+        </rule>
+        <rule name="rule v21" stopProcessing="true">
+          <match url="^service/(\d{1,})$" />
+          <action type="Rewrite" url="plugin/buycourses/src/service_information.php?service_id={R:1}" appendQueryString="false" />
+        </rule>
+        <rule name="rule v22" stopProcessing="true">
+          <match url="^lti/os$" />
+          <action type="Rewrite" url="plugin/ims_lti/outcome_service.php" appendQueryString="false" />
+        </rule>
+        <rule name="rule v23" stopProcessing="true">
+          <match url="^([^/.]+)/?$" />
+          <action type="Rewrite" url="user.php?{R:1}" appendQueryString="false" />
+        </rule>
+        <rule name="rule v24" stopProcessing="true">
+          <match url="^(tests|.git)" ignoreCase="false" />
+          <action type="Rewrite" url="/-" />
         </rule>
       </rules>
     </rewrite>