如何在安装应用程序之前预先检查应用程序是否已安装 [英] How to precheck whether application is installed or not before the prerequiste installing it

问题描述

HI



我开发了一个应用程序，只需安装一次，它就会在安装My application之前安装AccessdatabaseEngine作为Prerequiste。现在的问题是如何在提示用户安装AccessdatabaseEngine之前检查系统中是否安装了AccessdatabaseEngine，以便如果它先前安装在系统中而不是请求安装AccessdatabaseEngine，而是直接安装应用程序而不是要求重新安装它。



我发现我们可以使用我添加的包添加的XML标签来实现它，但我不知道应该添加什么标签一个人请帮我这个。

非常紧急请

HI

I have developed an application which is one click installation it will be installing AccessdatabaseEngine as Prerequiste before the installation of My application. Now the question is how can I check whether AccessdatabaseEngine is installed or not in the system before prompting the user to install AccessdatabaseEngine so that if its priorly installed in system than it doesnt request to install AccessdatabaseEngine, but directly install with the application rather than asking for reinstalling it.

I found that We can do it with the tag of XML adding in package that I have added, but I have no idea of what tag should be added some one Please help me with this.
Its very much urgent please

推荐答案

了解访客数据库是否在客户端可用部署时的机器。你可以使用微软工具BMGVS2008（BOOTSTRAPPER MANIFEST GENERATOR）。请通过一些链接了解它。它可以检查注册表项和软件的手册。

For knowing if the access database is available or not in client machine at the time of deployment. U can use a Microsoft tool BMGVS2008(BOOTSTRAPPER MANIFEST GENERATOR). Please go though some links to understand it. it can check for registry entry and manual available of software.

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