Is there way to wire up a block of code to execute when a DNN module/extension is installed and/or upgraded?

 I'm looking for a method of programatically creating an Admin page within the DNN instance as part of my custom module, and have that page automatically get setup when the extension is installed. Also, a method of automatically removing that page when the module/extension is uninstalled would be nice too.

Thank you for any suggestions.

Sure, there's load's in platform code (taxonomy, journal, htmleditorprovider, htmleditor etc.) - grab a source download from http://www.dnnsoftware.com/community/... 

Here's a simple example from DNN Platform\Modules\HTML\Components\HtmlTextController.cs

public class HtmlTextController : ModuleSearchBase, IPortable, IUpgradeable

...removed various content

        public string UpgradeModule(string Version)

        {

            switch (Version)

            {

                case "05.01.02":

                    //remove the Code SubDirectory

                    Config.RemoveCodeSubDirectory("HTML");

                    //Once the web.config entry is done we can safely remove the HTML folder

                    var arrPaths = new string[1];

                    arrPaths[0] = "App_Code\\HTML\\";

                    FileSystemUtils.DeleteFiles(arrPaths);

                    break;

                case "06.00.00":

                    DesktopModuleInfo desktopModule = DesktopModuleController.GetDesktopModuleByModuleName("DNN_HTML", Null.NullInteger);

                    desktopModule.Category = "Common";

                    DesktopModuleController.SaveDesktopModule(desktopModule, false, false);

                    break;

                case "06.02.00":

                    AddNotificationTypes();

                    break;

            }

           return string.Empty;

        }

If you look into DNN Platform\Modules\HTML\dnn_HTML.dnn you'll see the module definition businessControllerClass mode referencing the class above, and declaring that it supports Upgradeable i.e.

  <component type="Module">

          <desktopModule>

            <moduleName>DNN_HTML</moduleName>

            <foldername>HTML</foldername>

            <shareable>Supported</shareable>

            <businessControllerClass>DotNetNuke.Modules.Html.HtmlTextController, DotNetNuke.Modules.Html</businessControllerClass>

            <supportedFeatures>

              <supportedFeature type="Portable" />

              <supportedFeature type="Searchable" />

              <supportedFeature type="Upgradeable" />

            </supportedFeatures>

            <moduleDefinitions>