diff --git a/APPL/Shared/Bijlagen.asp b/APPL/Shared/Bijlagen.asp
index 657e6ba708..4ebe51645f 100644
--- a/APPL/Shared/Bijlagen.asp
+++ b/APPL/Shared/Bijlagen.asp
@@ -43,7 +43,7 @@
             {
                 var url = "../shared/BijlagenForm.asp?module=" + module;
                 var proturl = protectQS.create(url);
-                CreateButton(label, "bl('" + safe.jsstring(proturl) + "')");
+                CreateButton("{0} ({1})".format(label, module), "bl('" + safe.jsstring(proturl) + "')");
             }
         }
 
@@ -62,6 +62,7 @@
         bijlagen("WEB_PRSSYS", "Marktplaats foto's", "MRK");
         bijlagen("WEB_PRSSYS", "Menu plaatjes", "MENU");
         bijlagen("WEB_PRSSYS", "Opdrachtverstrekking bijlagen", "BDRADR");
+        bijlagen("WEB_FACFAC", custpath + "/xsl bestanden", "CUSTXSL");
 
       BLOCK_END();
 
diff --git a/APPL/Shared/BijlagenForm.asp b/APPL/Shared/BijlagenForm.asp
index f12bbfdc8a..c66ae3b5b7 100644
--- a/APPL/Shared/BijlagenForm.asp
+++ b/APPL/Shared/BijlagenForm.asp
@@ -78,7 +78,7 @@ if (params.extFilter)
 
 function MatchFile(fName)
 {
-  if (vFileName.toLowerCase() == 'web.config') // die nooit tonen
+  if (fName.toLowerCase() == 'web.config') // die nooit tonen
     return false;
 
   if (showFilter=="")
@@ -102,24 +102,18 @@ if (fso.FolderExists(params.AttachPath))
     // fso.DeleteFolder(params.AttachPath, true);
   }
 
-  function FileToAdd(vFileName, vDateStr, vFileSize)
-  {
-    this.vFileName = vFileName;
-    this.vDateStr = vDateStr;
-    this.vFileSize = vFileSize;
-  }
-
   for (; !fc.atEnd(); fc.moveNext())
   {
     fsoFile = fc.item();
-    vFileName = fsoFile.Name
-    if (!MatchFile(vFileName))
+    if (!MatchFile(fsoFile.Name))
       continue;
+    var fdata = { vFileName: fsoFile.Name,
+                  vDateStr: fsoFile.DateLastModified,
+                  vFileSize: fsoFile.Size }
+    if (fsoFile.Name.match(/_20[0-9]{6}_[0-9]{6}\./))
+        fdata.ishistory = true;
 
-    vFileDate = fsoFile.DateLastModified
-    vFileSize = fsoFile.Size
-    vDateStr = vFileDate // Right("0" & DatePart("d",vFileDate),2) & "/" & Right("0" & DatePart("m",vFileDate),2) & "/" & DatePart("yyyy",vFileDate)
-    fileArray.push(new FileToAdd(vFileName, vDateStr, vFileSize));
+    fileArray.push(fdata);
   }
 
   // Sorteer afhankelijk van de setting S("flexFilesOrdering") twee FileToAdd 'record's
@@ -310,7 +304,7 @@ if (fso.FolderExists(params.AttachPath))
               </TD>
               <TD align='right'><%=toDateTimeString(fileArray[i].vDateStr)%></TD>
               <TD align='right'><%=fileArray[i].vFileSize%></TD>
-<%            if (!pReado)
+<%            if (!pReado && (!params.keephistory || fileArray[i].ishistory))
               { %>
                 <td align=center><span onClick="DeleteFile('<%=safe.jsstring(fileArray[i].vFileName)%>', '<%=safe.jsstring(protectQS.create("Bijlagenform_delete.asp?DoDelete="+Server.URLEncode(fileArray[i].vFileName)+transitParam))%>')"
                     class='fa fa-trash fa-lg' title='<%=L("lcl_filedelete")%>'></span>
@@ -342,7 +336,7 @@ if (fso.FolderExists(params.AttachPath))
 <%    } %>
       </tbody>
       <script type="text/javascript">
-            window.return_data = { cnt: <%=fileArray.length%>, fileName: '<%=safe.jsstring(fileArray.length > 0? vFileName : "")%>'};
+            window.return_data = { cnt: <%=fileArray.length%>, fileName: '<%=safe.jsstring(fileArray.length > 0? fileArray[0].vFileName : "")%>'};
             FcltMgr.setCloseParams(window.return_data); // Zelfs als je kruisje gebruikt
             $(document).ready(function ()
             {
diff --git a/APPL/Shared/BijlagenStream.asp b/APPL/Shared/BijlagenStream.asp
index 1f73f0c6c3..74736ce278 100644
--- a/APPL/Shared/BijlagenStream.asp
+++ b/APPL/Shared/BijlagenStream.asp
@@ -42,6 +42,9 @@ DOCTYPE_Disable = 1; // ook al volgt straks een response.Clear
     var pcontentdp   = getQParam("contentdp", "attachment");
     var pDosave      = getQParam("dosave", 0)==1;
 
+    // Doet whitelist van pModule, kan S("flexAllowedExt") overrulen
+    params = flexProps(pModule, pKey, String(pKenmerk_key), pNiveau);
+
     // Zonder extensie downloaden keuren we goed
     // (ook al staan we sinds 5.2.1 uploaden niet meer toe)
     if (pFileName.indexOf(".") >= 0 && !new RegExp(S("flexAllowedExt"), "ig").test(pFileName))
@@ -49,9 +52,6 @@ DOCTYPE_Disable = 1; // ook al volgt straks een response.Clear
         INTERNAL_ERROR_BAD_EXT;
     }
 
-    // Doet whitelist van pModule
-    params = flexProps(pModule, pKey, String(pKenmerk_key), pNiveau);
-
     Response.CacheControl = "private"; // UWVA#38548: Anders problemen met IE8
 
     // Bestanden zijn nu te vinden on ...cust/*/flexfiles/[module]/[key]/
diff --git a/APPL/Shared/FlexFiles.inc b/APPL/Shared/FlexFiles.inc
index 4752667e4e..350e306e88 100644
--- a/APPL/Shared/FlexFiles.inc
+++ b/APPL/Shared/FlexFiles.inc
@@ -313,6 +313,15 @@ function flexProps(pModule, pKey, pSubpath, pNiveau, params)
           result.multi = true;
           result.extFilter = S("flexExtensionFilter"); // Mag in principe alles zijn
           break;
+      case "CUSTXSL":
+          result.AttachRootPath = Server.MapPath(custpath + "/xsl");
+          result.AttachPath = result.AttachRootPath + "/";
+          result.multi = true;
+          result.extFilter = "xsl";
+          result.keephistory = true;
+          settings.overrule_setting("flexAllowedExt", "xsl"); // tijdelijk xsl toestaan
+          settings.overrule_setting("flexFilesOrdering", 0);
+          break;
       default:
           INTERNAL_ERROR_MODULE;
   }
diff --git a/APPL/Shared/UploadForm_save.asp b/APPL/Shared/UploadForm_save.asp
index b0ec58785b..a84b6eed6d 100644
--- a/APPL/Shared/UploadForm_save.asp
+++ b/APPL/Shared/UploadForm_save.asp
@@ -51,6 +51,7 @@ if (params.extFilter)
   regFilter = regFilter.replace(/( |,|;)/g,"|"); // Altijd | karakter
   regFilter = ".*\\." + "(" + regFilter + ")$"; // er moet een punt voor en extensie is aan het einde
 }
+var fso = Server.CreateObject("Scripting.FileSystemObject")
 
 %>
 
@@ -156,6 +157,16 @@ if (params.extFilter)
                       // Save binary data To disk
                       __Log("Saving to: " + params.AttachPath + safefilename);
                       CreateFullPath(params.AttachPath);
+                      if (params.keephistory && fso.FileExists(params.AttachPath + safefilename))
+                      {
+                        var jsDate = new Date();
+                        var backupTime = String(jsDate.getFullYear()) + padout(jsDate.getMonth() + 1) + padout(jsDate.getDate()) + "_"
+                                       + padout(jsDate.getHours()) + padout(jsDate.getMinutes())+ padout(jsDate.getSeconds());
+                        // backupTime vlak voor de extensie plakken
+                        var backupName = safefilename.replace(/(\.[a-z]*)$/i, "_" + backupTime + "$1");
+                        fso.MoveFile(params.AttachPath + safefilename, params.AttachPath + backupName);
+                        __DoLog("Replaced {0}, previous version in {1}".format(params.AttachPath + safefilename, backupName));
+                      }
                       BinaryStream.SaveToFile(params.AttachPath + safefilename, 2); // adSaveCreateOverWrite
                   }
                   catch(e)
@@ -201,7 +212,6 @@ if (params.extFilter)
       }
       else
       {
-          var fso = Server.CreateObject("Scripting.FileSystemObject")
           var f = fso.GetFolder(params.AttachPath);
           for (fc = new Enumerator(f.files); !fc.atEnd(); fc.moveNext())
           {