--- title: Parse Items Tab description: Parse Items Tab author: eavena ms.assetid: bdf3fe0d-404a-4745-af52-f415fa321564 ms.reviewer: manager: dansimp ms.author: eravena ms.pagetype: mdop, appcompat, virtualization ms.mktglfcycl: deploy ms.sitesec: library ms.prod: w10 ms.date: 06/16/2016 --- # Parse Items Tab The **Parse Items** tab displays the mapping rules that the Sequencer uses to accommodate differences that exist between configurations on the sequencing computer and the App-V Desktop Client. This tab contains the following elements. ## UI Elements List **Parse From** Displays read-only variable names evaluated by the Application Virtualization Sequencer to determine important operating system locations on the sequencing computer. **Parse To** Displays read-only variable names that the Application Virtualization Sequencer substitutes when encountering variable names in the associated **Parse From** column, while parsing items in the virtual file system or virtual registry. **Map Type** Displays read-only mapping rules that the Application Virtualization Sequencer applies to parse items in the virtual file system or virtual registry. One of the following values can occur: **OK** Saves the changes and exits the dialog box. **Cancel** Exits the dialog box without saving any changes. **Apply** Saves the changes and remains in the dialog box. ## Related topics [Application Virtualization Sequencer Options Dialog Box](application-virtualization-sequencer-options-dialog-box.md)