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Understanding the InstantKB database connection string

This article is intended to provide assistance if your having any trouble installing our products using the default connection string.

By default both InstantForum and InsantKB are provided with a connection similar to...


To assist with any problems you may encounter whilst using this connection string we've broken down and explained each element of the default connection string below.


This is the name or IP address of your SQL Server instance. To locate the name for your SQL Server instance you can follow the steps below.

To identify the name of your server if your using SQL Server 2008 or above you'll need to open the SQL Server 2008/2012/2016 Configuration Manager. Click the "SQL Server Services" node then double click the "SQL Server Agent (MSSQLServer)" service. Within the service property dialog click the "Service" tab and locate the "Host Name" field.

If you've installed a local instance of SQL Server the server name will typically be the machine name or IP address of that machine. Shared hosting providers may require you to update this to something like "sql1.myisp.com".


By default both InstantForum & InstantKB use a trusted database connection. This is intended to allow you to get up and running quickly without having to configure any specific SQL Server accounts for your database.

Trusted connections will use the same windows account that your ASP.NET worker process is running under. This is typically the ASPNET account for Windows XP, 2000 or the NETWORKSERVICE account for Windows Server  2008, 2012, 2016 or Windows 7 & 8.

As the software is setup by default to use a trusted connection you need to add the ASPNET or NETWORKSERVICE windows account (depending on your OS) as a user for your database once created.

To ensure the ASPNET or NETWORKSERVICE account can access the various tables and execute the stored procedures required by our products you should associate "db_owner" privileges with either the ASPNET or NETWORKSERVICE account.

For SQL Server 2005/2008/2012/2016 expand your database and click the "Security" note. Right click "Users" and select "Add User". Locate the ASPNET or NETWORKSERVICE account (depending on your SQL Server OS) and give this "db_owner" privileges for your database.


This is the name of your InstantForum or InstantKB database. As your using a trusted connection within the connection string as detailed above the ASPNET / NETWORKSERVICE account will need db_owner access to this InstantKB database.
I hope this article addresses some of the more common questions we receive around our default connection string. If we can assist with any questions post your comment below or please don't hesitate to contact us.