How to Create Installer (.cab) for web part?

http://www.codeproject.com/KB/install/WebpartInstaller.aspx<br /><br /><br /><br />Introduction<br /><br />A sample project (Hello world webpart and installer project) and walk through for creating an installer for web part that will install the webpart on the share point portal site.<br /><br />It will make a SafeControl entry in share point portal site's webconfig file, will add a file in the share point portal site's wpcatalog, will create a folder under share point portal site's wpresources directory and add files to the created folder.<br /><br />Assumptions<br /><br />Hello world webpart project is ready for use.<br />Developer knows how to add a webpart to the share point portal site.<br />Developer has knowledge of webparts and share point portal site.<br />How to add a .cab project to the existing web part solution?<br /><br />Right click the solution and navigate to Add -> New Project.<br />Select Setup and Deployment project from project type.<br />Select Cab Project from Template section.<br />Write the appropriate Project name, select the appropriate project location and click OK.<br />How to add (file installation properties) the project output to the .cab project?<br /><br />Right click on the .cab project. Navigate to Add -> Project Output.<br />Select the Primary Output and Content Files from the available list.<br />How to add the file to the Primary Output file installation properties?<br /><br />Right click on the Primary Output.<br />Select Properties.<br />In the Primary Output properties click on Outputs and select the WpSampleHelloWorld.dll.<br />How to add the file to the Content Files file installation properties?<br /><br />Edit Manifest.xml in the webpart project.<br />Under the section <ClassResources>, add an entry like <ClassResource FileName ="minus.gif"/> for each file that needs to be deployed under "wpresources\WpSampleHelloWorld".<br />Assembly mentioned under the section <Assemblies> will be deployed in the share point portal's bin directory.<br />DWP file mentioned under the section <DwpFiles> will be deployed in the share point portal's wpcatalog directory.<br />Right click on the Content Files of the installer project.<br />Select Properties.<br />In Content Files properties click on Outputs and it will show the entire files that are part of the current project in the popup window.<br />How to run the cab file?<br /><br />Edit the .bat file WpSampleHelloWorldInstaller.bat and modify "http://ABC/" to the required portal site.<br />Through the command prompt, navigate to the directory where WpSampleHelloWorldInstaller.bat and WpSampleHelloWorldInstaller.CAB are present.<br />Enter the WpSampleHelloWorldInstaller.bat file name on the command prompt and press the Enter key. It will show a success message.<br />Verify that a SafeControl entry is added to the webconfig file and "WpSampleHelloWorld_1.0.0.0__b8904f2e5aa5eda1_HelloWorld.dwp" file is added to thewpcatalog directory. Create a folder with the name "WpSampleHelloWorld" under wpresource directory and add all the files that are mentioned inmanifest.xml to the "wpresource\WpSampleHelloWorld" directory.