我使用Visual Studio安装项目来创建MSI。我在Orca中编辑了MSI,以便在首次打开时通过DLL执行自定义操作。当我运行MSI时,msiexec
记录以下内容:
MSI (c) (E4:BC) [15:28:14:453]: Doing action: CustomAction1
Action 15:28:14: CustomAction1.
Action start 15:28:14: CustomAction1.
MSI (c) (E4:BC) [15:28:14:453]: Note: 1: 2235 2: 3: ExtendedType 4: SELECT `Action`,`Type`,`Source`,`Target`, NULL, `ExtendedType` FROM `CustomAction` WHERE `Action` = 'CustomAction1'
MSI (c) (E4:BC) [15:28:14:453]: Creating MSIHANDLE (13) of type 790542 for thread 3260
MSI (c) (E4:B4) [15:28:14:453]: Invoking remote custom action. DLL: C:\DOCUME~1\USERNA~1\LOCALS~1\Temp\MSIA3.tmp, Entrypoint: SampleFunction
MSI (c) (E4:B4) [15:28:14:453]: Closing MSIHANDLE (13) of type 790542 for thread 3260
Action ended 15:28:14: CustomAction1. Return value 3.
MSI (c) (E4:BC) [15:28:14:468]: Doing action: FatalErrorForm
Action 15:28:14: FatalErrorForm.
Action start 15:28:14: FatalErrorForm.
MSI (c) (E4:BC) [15:28:14:468]: Note: 1: 2235 2: 3: ExtendedType 4: SELECT `Action`,`Type`,`Source`,`Target`, NULL, `ExtendedType` FROM `CustomAction` WHERE `Action` = 'FatalErrorForm'
然后,安装程序向导会显示错误消息:The installer was interrupted before MyProduct could be installed. You need to restart the installer to try again.
自定义DLL是用C ++编写的。这是源代码:
MyCustomAction.cpp:
// MyCustomAction.cpp : Defines the entry point for the DLL application.
#include "stdafx.h"
BOOL APIENTRY DllMain(HANDLE hModule, DWORD ul_reason_for_call, LPVOID lpReserved)
{
return TRUE;
}
UINT __stdcall SampleFunction(MSIHANDLE hModule)
{
//This is the function that is called by the MSI
//It is empty because I just want to check that it can be called without interrupting the installer, then I will add the actual functionality
}
MyCustomAction.def:
; MyCustomAction.def
;
; defines the exported functions which will be available to the MSI engine
LIBRARY "MyCustomAction"
DESCRIPTION 'Custom Action DLL'
EXPORTS
SampleFunction
我还在DLL的附加依赖项中引用了msi.lib
。当我目前没有明确告诉它做什么时,为什么自定义操作会中断安装?任何帮助将不胜感激。
更新:
在Orca中,自定义操作位于Binary
表中,并且是CustomAction
表中的类型1。自定义操作为Immediate
,发生在IsolateComponents
之后WelcomeForm
表中的InstallUISequence
之后。
答案 0 :(得分:0)
您应该更新您的代码和帖子,以表明您实际上正在返回ERROR_SUCCESS。无论是否解决问题,关键是要做到这一点是正确的。如果它没有返回值,则调用序列将失败并出现错误。
由于缺少依赖项,您的Dll可能无法加载。如果您在代码中添加了一个简单的消息框调用,那么至少可以看看代码是否真正开始运行。 C ++将需要运行时支持可能尚未在系统上的Dll。
如果事实证明您对C ++运行时具有依赖性,那么您需要在运行MSI之前安装它们。这是先决条件的选择 - 它生成一个setup.exe来安装依赖项,然后安装你的MSI。