在Project Professional 2007 中籤出企業全域性設定, Alt+F11開啟VBA編輯器時，彈出N次"訪問檔案錯誤，網路連線可能已丟失"提示，之後企業全域性設定的VBAProject就消失了，也就是說沒有辦法對企業全域性進行VBA編碼。

在網上找到了答案, 原文如下：

http://projectserverblogs.com/?p=2228

I see this problem reported in the Microsoft Public Newsgroups regularly, and it is a known issue with both Project Server 2003 and Project Server 2007. When you try to access a macro stored in your Enterprise Global File

when using Microsoft Office Project 2007 or Microsoft Office Project 2003 while attached to either Project Server 2003 or 2007, the system reports the “Error accessing file: Network connection may have been lost.” This error often indicates corruption in the VBA stream in the Enterprise Global File. The most common cause of this corruption happens when you close the Enterprise Global File without first saving the file. To avoid this problem, always save your Enterprise Global File before closing it.

The easiest way to recover from this error is to restore an Administrative Backup copy of your Enterprise Global File. Restoring a good copy of the file overwrites the corruption resolving the problem. This is exactly the type of situation that the Administrative Backup

feature in Project Server 2007 is most useful. It also presents a very strong argument for scheduling administrative backups to run each night. Likewise, it is a strong argument for backing up the Enterprise Global file in Project Server 2003 on a regular basis, which is a manual process. My best practice recommendation is to backup the Enterprise Global File just before you make any changes to it so you always have the latest version to fall back to.

也就是登入 PWA，在伺服器設定-資料庫管理-管理性還原, 選擇企業全域性設定 - 還原

出現問題的原因，有可能是程式碼中的編碼，我是直接Copy過來，部份註釋變成了亂碼。

也有可能是VBA程式碼沒有進行編譯，

我刪除亂碼，匯入證書後重新編譯程式碼，再簽入，一切恢復正常。