Then, modify the separate image file and save that. Then, using the larger sprite image and the CSS file, determine where in the sprite that image is located. ![]() First, locate the separate image file that you want to change. If your custom theme requires you to modify the images, we recommend the following flow as being more reliable and less error-prone. The larger images such as the logo and banner images remain as separate image files. In addition, at this time, not all image references in Outlook Web App use the sprites. While using sprites lowers the network traffic and improves the overall user response time, it is more difficult to modify an individual image. The CSSSprites.css file defines the pixel-offsets inside the larger image where each of the small images is located. To display one of the small images, the browser selects only a small portion of the larger image. ![]() All of the small images are placed into one large image file, which is downloaded to the client browser only once, reducing HTTP overhead significantly. To improve network bandwidth utilization, Exchange 2010 Outlook Web App uses "sprites". In this implementation, each small image required the request-and-response overhead incurred in an HTTP GET. In Exchange 2007, the images transmitted to the browser were all in separate files. May be required if the application requires different credentials to access non-Exchange data. Inconvenient to have users reenter their user name and password. Prompt the user for their Exchange or other logon credentials. The custom application will have unrestricted access to Exchange data, which can lead to potential security concerns. This method does not affect the performance of the Exchange server. Obtain the credentials from the IIS user context. #How to create group in outlook web app windowsUse the already-accepted Exchange user credentials that are available in the current IIS user context.Īpplication does not have to handle users who are logging on as a different Windows user.ĭesign and quality problems in the custom application can affect server performance, reliability, and security.ĭeploy the application on a different server and create a trust relationship for server-to-server authentication. ISA 2006 might not be part of your organization's regular operations.ĭeploy the custom application inside the Outlook Web App Application Pool. ![]() Retrieve the ISA firewall access token, and pass that to Exchange. ![]() Publish custom application as single sign-on (SSO) by using Microsoft Internet Security and Acceleration (ISA) Server 2006. For example, you might name the folders after the registered content classes, and store all the forms that handle items of that content class in the same folder. To register small icons to represent custom item types in the Outlook Web App user interface, include a Mapping element inside the SmallIconMappings element in the UIExtensions.xml file.Ĭode for your custom form applications is typically located in a subfolder inside the ClientAccess\Owa\forms folder. In Outlook Web App in Exchange 2010, you register forms to handle custom item types in the registry.xml files. To modify the Outlook Web App user interface, copy the template file in the forms\Customization folder, make your changes, and then change the name of the file to UIExtensions.xml. Outlook Web App reads only one UIExtensions.xml file, which is located in the forms\Customization folder. The is located in the ClientAccess\Owa\forms\Customization folder inside the Exchange installation folder. Make your changes to the copy, and then rename the file to registry.xml To create and register a custom form, create a new folder inside the forms folder, and copy the file into that folder. Outlook Web App in Exchange 2010 provides a template file that is named in the ClientAccess\Owa\forms\Customization folder inside the Exchange installation folder.
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