Beta installation


Coderr is now built using ASP.NET Core MVC. Make sure that you have installed the .NET Core Hosting Bundle on your web server.

  1. Go to
  2. Click on a .NET Runtime, for instance .NET Core Runtime 2.0.6
  3. Find the "Hosting Bundle Installer" under "Windows"
  4. Download and install it.
  5. Stop IIS, run "net stop was /y" from a command promt
  6. Start IIS, run "net start w3svc" from a command prompt.

You can also read Microsofts guide

You should have received a download link from us. If not, email


Instruction for installing Coderr for the first time.

  1. Download the installation zip file.
  2. Unpack it to a IIS folder (for instance c:\wwwroot\inetpub\coderr\).
  3. Open appsettings.json and change "changeThis" value to your own installation password.
  4. Create a database in your SQL Server (SQL Server 2012 or above).
  5. Give the permissions db_datareader, db_datawriter, db_ddladmin to your IIS application pool account (for instance IIS AppPool\DefaultAppPool).
  6. Open a browser and visit the URL for Coderr
  7. Follow the installation guide.


Upgrade from an earlier version of Coderr.

  1. Download the installation zip file.
  2. Copy your connection string from web.config and store it somewhere.
    <add name="Coderr" connectionString="SAVE THIS STRING ONLY" />
    (i.e. not the entire XML element but only the attribute contents)
  3. Delete ALL files from your existing Coderr folder.
  4. Unpack all files from the zip file to your Coderr folder
  5. Open appsettings.json
  6. Change the connection string to your own.
  7. Change configured to true
  8. Close appsettings.json
  9. Coderr should now work.


Either write a post in our beta forum or just write us an email.

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