Web.Config file changes automatically???

[DNB]

One of our web application suddenly stopped working.

After doing some investigation I did find that following section has been
added to web.config file.



After removing this section it was working again. We could not figure out
who added this?

Can a change made to IIS change Web.config file? I don't think so?

Any suggestions?



Thanks

DNB



<assemblies>

<add assembly="System.Web, Version=2.0.0.0, Culture=neutral,
PublicKeyToken=B03F5F7F11D50A3A"/>

<add assembly="System, Version=2.0.0.0, Culture=neutral,
PublicKeyToken=B77A5C561934E089"/>

<add assembly="System.Configuration, Version=2.0.0.0, Culture=neutral,
PublicKeyToken=B03F5F7F11D50A3A"/>

<add assembly="System.Drawing, Version=2.0.0.0, Culture=neutral,
PublicKeyToken=B03F5F7F11D50A3A"/>

<add assembly="System.Xml, Version=2.0.0.0, Culture=neutral,
PublicKeyToken=B77A5C561934E089"/>

<add assembly="System.Data, Version=2.0.0.0, Culture=neutral,
PublicKeyToken=B77A5C561934E089"/>

<add assembly="System.Web.Services, Version=2.0.0.0, Culture=neutral,
PublicKeyToken=B03F5F7F11D50A3A"/>

<add assembly="System.DirectoryServices, Version=2.0.0.0, Culture=neutral,
PublicKeyToken=B03F5F7F11D50A3A"/>

<add assembly="System.DirectoryServices.Protocols, Version=2.0.0.0,
Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>

<add assembly="System.EnterpriseServices, Version=2.0.0.0, Culture=neutral,
PublicKeyToken=B03F5F7F11D50A3A"/>

<add assembly="System.Design, Version=2.0.0.0, Culture=neutral,
PublicKeyToken=B03F5F7F11D50A3A"/>

<add assembly="System.ServiceProcess, Version=2.0.0.0, Culture=neutral,
PublicKeyToken=B03F5F7F11D50A3A"/>

<add assembly="System.Windows.Forms, Version=2.0.0.0, Culture=neutral,
PublicKeyToken=B77A5C561934E089"/>

<add assembly="System.Web.RegularExpressions, Version=2.0.0.0,
Culture=neutral,
PublicKeyToken=B03F5F7F11D50A3A"/></assemblies></compilation>