Double Commander: Less Known Features

I love Double Commander (DC) as a two-pane file manager and have already written about its basic features, how to add 7z support and some svn woes.

But DC has got some advanced features which you maybe wouldn’t expect.

  • Under Files-Multi Rename it has got a tool with which you can do a rule-based rename of many files easily. Very useful e.g. to rename songs downloaded from Amazon.
  • You can create symbolic and hard filesystem links. (Files-…)
  • Under Files-Compare by Content you’ll find a diff tool. But you could also configure DC to use the diff tool you prefer.
  • You can use DC as a FTP-client. When using this feature the first time, do this:
    1. Select Commands-Open VFS List.
    2. One of the panes then will show the entries FTP and Network.
    3. Double-click on FTP, then it will show Add connection and Quick connection.
    4. Double click one of them to add a connection.

DC is extremely configurable and extensible. Some examples.

  • The toolbar is fully configurable:
    1. Go to Configuration-Options-Toolbar.
    2. Click Insert new button.
    3. Select an internal command from the combobox or create an external command. You can use anything you want as a command and you can pass parameters like the currently selected file or path to it.
    4. Add a tooltip, icon and hotkey as you like.
  • You can connect file extensions with commands and hotkeys. For example, I as a software developer often need to know the version of a certain dll.
    So I connected the F3 key with a viewer for the dll version like this:

    1. Open Options dialog, select node File associations.
    2. Under File types select Add and add file type dll.
    3. Under Extensions select Add and type in dll.
    4. Under Actions select Add and then click the + and select View. This relates to the View command or cm_View in the DC.
    5. Under Commad select the + on the right and there Run in terminal (as my version reading program is a command line tool). Then select full path under the +. Resulting is a command like {!SHELL} version.exe %p

    Now, when a dll is highlighted and I hit F3, its complete version info is shown. Much easier and faster than right-click-properties-details.

  • You can color files according to their types: Configuration-Options-Colors-File types
  • All hotkeys are configurable: Configuration-Options-Keys-Hot keys

Add ASP.NET Masterpage Afterwards

When you’ve got some existing ASP.NET pages and you later on want to add a common masterpage, do this:

Master Page

  1. Create a masterpage, e.g. Management.Master.
  2. Add the sub pages’ comon controls to the master.
  3. In the Management.Master, add ContentPlaceHolder items for head and body:
<asp:ContentPlaceHolder ID="CphHead" runat="server" />
<asp:ContentPlaceHolder ID="CphBody" runat="server" />

Sub Page

Do the following in the subpage.aspx:

  1. Add masterpagefile to page level directive:
    <%@ Page ... MasterPageFile="Management.Master"
  2. Remove the <!DOCTYPE>, <html>, <form> and </form>, </html> tags.
  3. Replace the <head> tag by the <asp:Content...> tag respecting the link to the ContentPlaceHolder via ID and ContentPlaceHolderID, like this:
<asp:Content ID="Cont1" ContentPlaceHolderID="CphHead" runat="server">
    // former head content goes here
  1. Likewise replace the body tag by the tag:
<asp:Content ID="Cont2" ContentPlaceHolderID="CphBody" runat="server">
    // former body content goes here

Sub Page Easy

If you’ve got nothing than the <title> tag inside of the <head> section, it is a bit easier:

  1. Add masterpagefile and title to page level directive:
    <%@ Page ... MasterPageFile="Management.Master" Title="Subpage"
  2. Remove the <head> section.
  3. Replace the <body> tag by the <asp:Content...> tag respecting the link to the ContentPlaceHolder via ID and ContentPlaceHolderID, like this:
<asp:Content ID="Cont1" ContentPlaceHolderID="CphBody" runat="server">
    // former body content goes here


Epic Browser

Since some time, the video downloadhelper addon of Firefox did not work well for me. Now I’ve found the Epic Browser.

  • It is based on Chromium and fast.
  • It has got a working video downloader built in.
  • It’s got an adblocker built in.
  • It is dedicated to protect privacy as a number one concern.

Find out which process is locking a file or folder in Windows

For Windows 7, 8 and 10 you can use the built-in Resource Monitor for this.

  1. Open Resource Monitor, which can be found by searching for resmon.exe in the start menu, or as a button on the Performance tab in your Task Manager.

  2. Use the search field in the Associated Handles section on the CPU tab
    pointed at by blue arrow in screen shot below.

In case it’s not obvious, when you’ve found the handle, you can identify the process by looking at the Image and/or PID column.

You can then close the application if you are able to do that, or just right-click the row and you’ll get the option of killing the process right there. Easy peasy!

Remark: The complete text and the picture above are taken from one of the answers to the question on
Some of the comments there claim that sometimes they could not find handles with Resmon but could find them with Process Explorer. Some others claim they could not find handles with Process Explorer but with Resmon.

I’d like to add, if you are looking for the directory C:\alpha\beta\gamma, you can enter in the search field
* gamma or GAMMA or \Gamma
* beta\gamma
* beta or \beta\
* C:\alpha\beta\gamma
* You cannot use slashes instead of backslashes.

How to Do a Real Windows 10 Restart

To my astonishment, Windows 10 does not really do a full restart or shutdown when you select the according menu entries from the start menu.

This is bad, because if you want to do a restart, you want to do this because something is wrong with the system. So then a partial restart is exactly not what you usually want.

You still can do a real restart via commandline:

%windir%\System32\shutdown.exe /r /t 0

When you rightclick on the desktop and select New/Shortcut and put in the commandline above you create an icon on the desktop with which to do a real restart.
Also, it may be good for the system to do a real shutdown once a week. Here’s the commandline.

%windir%\System32\shutdown.exe /s /t 0