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使用Powershell / DSC的MSI升级

[英]MSI upgrade with Powershell /DSC

原文 2014-10-09 16:28:45 0 1 powershell/ dsc

I am able to successfully uninstall (Ensure = "Absent") or install a product (Ensure = "Present"). 我能够成功卸载（Ensure =“ Absent”）或安装产品（Ensure =“ Present”）。 However, if I create a new version of the same product, it always comes back with the same message - "already installed". 但是，如果我创建相同产品的新版本，则它总是返回相同的消息-“已经安装”。

Does that mean the only way to upgrade is to uninstall / install? 这是否意味着升级的唯一方法是卸载/安装？

1 个解决方案

It sounds like this is an MSI that you are creating. 听起来这是您正在创建的MSI。 Make sure you're changing the product code for each version: 确保您要更改每个版本的产品代码：

What is ProductCode in MSI Package? MSI软件包中的ProductCode是什么？

The product code is the unique GUID of identifying an application or product release; 产品代码是标识应用程序或产品版本的唯一GUID。 In other words, different versions and languages of Product must have different product codes. 换句话说，产品的不同版本和语言必须具有不同的产品代码。 http://msdn.microsoft.com/en-us/library/aa370854(VS.85).aspx . http://msdn.microsoft.com/zh-CN/library/aa370854(VS.85).aspx 。 Also, ProductCode can be used to query feature state, and product state. 另外，ProductCode可用于查询功能状态和产品状态。 For example, installer API "MsiQueryFeatureStateEx()" and "MsiQueryProductState()", etc. 例如，安装程序API“ MsiQueryFeatureStateEx（）”和“ MsiQueryProductState（）”等。