如何解决VSTO插件不加载？ [英] How to troubleshoot a VSTO addin that does not load?

问题描述

我的VSTO Outlook插件突然停止工作的一个客户机（它不会加载，没有错误消息），我只能和故障排除。本机Windows 7的86，Outlook 2007中的加载项写入与Visual Studio 2008，并使用VSTO 2005年与2003 PIA的（因为我们需要支持的Outlook 2003以及）。它的工作原理完全正常在其他计算机上。

My VSTO Outlook Add-in suddenly stopped working on one customer machine (it does not load, no error message) and I'm stuck with troubleshooting. The machine is Windows 7 x86, Outlook 2007. The add-in is written with Visual Studio 2008 and uses VSTO 2005 with the 2003 PIAs (because we need to support Outlook 2003 as well). It works perfectly fine on other machines.

下面是我试图让有用的故障诊断输出：

Here's what I tried to get useful troubleshooting output:

• 添加 VSTO_SUP preSSDISPLAYALERTS 环境变量（设置为 0 ）。
• 在启动Outlook具有管理权限。
• 查找到事件日志中。

• Add the VSTO_SUPPRESSDISPLAYALERTS environment variable (set to 0).
• Start Outlook with administrative permissions.
• Look into the event log.

什么也没有。该加载项是不会加载不放弃的任意的指示的原因。我也查了秋后算账（CAS策略，PIA的安装，LoadBehavior的注册表，重新安装VSTO和加载项）。

Nothing. The add-in just won't load without giving any indication of the reason. I've also checked the "usual suspects" (CAS policy, PIAs installed, LoadBehavior in the registry, reinstalling VSTO and the add-in).

其他的一些意见：

• LoadBehavior的在注册表保持在 3 。
• 加载项显示为在Outlook中的已禁用。检查它的COM加载项只是什么也不做（没有错误，复选框，然后再次进入表单时第二次被清除）。
复选框
• 在这工作完全正常的另外一个用户的机器，它的工作完全没有这台机器上。 （不，客户不能告诉我什么改变了他的机器上。）
• 在我有一个 Trace.WriteLine 的消息在我的code。在 ThisAddIn_Startup 处理程序），这是没有达到（我用的DebugView 选中）。因此，不加载的原因是不是在我的加载项异常，而是VSTO的失败加载的Outlook加载项或加载VSTO。

• LoadBehavior in the registry stays at 3.
• The add-in shows up as "disabled" in Outlook. Checking its checkbox in "COM add-ins" just does nothing (no error, checkbox is cleared again when entering the form a second time).
• It works perfectly fine on other customer machines, and it worked perfectly fine on this machine. (No, the customer cannot tell me what changed on his machine.)
• I have a Trace.WriteLine message at the very top of my code (first line in the ThisAddIn_Startup handler), which is not reached (I checked with DebugView). Thus, the reason for not loading is not an exception in my add-in but rather a failure of VSTO to load the add-in or of Outlook to load VSTO.

相反更随意调试（试试这个......，尝试...），我真的很喜欢的力Outlook和/或VSTO告诉我什么是错 ，也就是给我一个有用的错误消息，而不是仅仅的无所事事的尝试启用该加载项时。有任何想法吗？

Instead of more random debugging ("try this...", "try that..."), I'd really like to force Outlook and/or VSTO to tell me what's wrong, i.e. to give me a useful error message instead of just doing nothing when trying to enable the add-in. Any ideas?

推荐答案

您是否尝试再次启用该加载项？在禁用的队列及其后它将无法运行。当您从禁用的加载项在屏幕上重新启用它，你可以检查在COM-的AddIn屏框有它加载自设置，然后应提示您更详细的 VSTO_SUP $ P什么可能发生在首位$ pSSDISPLAYALERTS 变量。

Did you try enabling the add-in again? It won't run after its in the disabled queue. After you re-enable it from the disabled add-in screen, you can then check the box in the COM-AddIn screen to have it load which then should prompt you more detail since you set the VSTO_SUPPRESSDISPLAYALERTS variable about what may have happened in the first place.

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