1· 下载安装 Web Platform Installer v4 Command Line (WebPICMD.exe) Tool.(http://download.microsoft.com/download/7/0/4/704CEB4C-9F42-4962-A2B0-5C84B0682C7A/WebPlatformInstaller_amd64_en-US.msi)
2· 用管理员身份运行cmd.exe, 转到WebPICMD.exe 文件夹：cd c:program filesmicrosoftweb platform installer
然后运行下面的命令：
webpicmd /offline /Products:WorkflowManagerRefresh /Path: c:WorkflowManagerFiles
3 · cd c:WorkflowManagerFiles， 然后运行下面命令去安装workflow manager:
WebpiCmd.exe /Install /Products:WorkflowManager /XML:e:/install/WorkflowManagerFiles/feeds/latest/webproductlist.xml