批处理文件中不能立即看到环境变量通过的InstallShield脚本创建 [英] Batch file can't immediately see environment variables created by InstallShield script

问题描述

我们使用的的InstallShield 2008 的为我们的产品安装。产品由几个部分组成。当安装一个组件，一个批处理文件用一些安装后的特定于该组件被执行的程序

We use InstallShield 2008 for our product installation. Product consists of several components. When a component is installed, a batch-file with some post-install routines specific to this component is executed.

问题：安装后的批处理文件使用通过的的InstallScript 的在产品安装过程中设置一些环境变量。但似乎批处理文件不能看到眼前注册表的变化（与新创建的环境变量）。

The problem: post-install batch files use some environment variables that are set during the installation of the product through InstallScript. But it seems that batch-files can't see immediate changes in registry (and newly created environment variables).

有没有办法来完成安装，无需重新引导系统？

Is there a way to accomplish installation without a system reboot?

潜在有用的信息：目标系统 - 的的Windows XP 的，当前登录的用户是的管理员的组

Potentially useful information: target system - Windows XP, currently logged in user is in Administrators group.

推荐答案

我不得不使用InstallShield的早期版本相同的问题。下面是我解决的方式（快速和肮脏code）。

I had the same problem with an earlier version of InstallShield. Here's the way I solved it (quick and dirty code).

#define HWND_BROADCAST          0xffff
#define WM_SETTINGCHANGE        0x001A
function UpdateEnvironmentVariable(szKey, szValue)
  NUMBER nResult;
  STRING szEnv;
  POINTER pEnv;
begin
  nResult = RegDBSetKeyValueEx(szKey, "PATH", REGDB_STRING, szValue, -1);

  szEnv = "Environment";                    
  pEnv = &szEnv;                  
  SendMessage (HWND_BROADCAST, WM_SETTINGCHANGE, 0, pEnv );
end;

的关键是使用SendMessage函数。
希望它帮助。

The key is to use SendMessage. Hope it helps.

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