Question

CreateUpdateDownloader如何下载文件？我问，因为我的系统缺少4 KB。

我通过在脚本中迭代更新集合来获取4个缺失KB的标题。

当我将该集合分配给CreateUpdateDownloader时，我只在C：\ Windows \ SoftwareDistribution \ Download中找到1 KB。

有没有想过为什么它没有下载其他3 KB？是的，我现在只想扫描和下载 - 试着通过观察它的实际情况来了解它是如何工作的。我稍后会安装，因为我想调整一些。

代码如下：

Dim session : Set session = CreateObject("Microsoft.Update.Session")
Dim search  : Set search  = session.CreateUpdateSearcher()

WScript.Echo "Searching for updates..." & vbCrLF

Set result = search.Search("IsInstalled=0 AND Type='Software' AND IsHidden=0")

WScript.Echo "Missing KBs:"
For i = 0 To result.Updates.Count -1 'last item in the collection always seems to be some kind of gibberish null.
    Set update = result.Updates.Item(i)
    WScript.Echo i + 1 & "> " & update.Title
Next

If result.Updates.Count = 0 Then
    WScript.Echo "There are no applicable updates."
End If

Set downloader = session.CreateUpdateDownloader() 
downloader.Updates = result.Updates ' updatesToDownload
downloader.Download()

Answer 1

必须使用 Microsoft.Update.UpdateColl 来收集要下载的更新。功能 CopyFromCache 允许下载更新的本地副本。属性 DownloadURL 将允许您从Internet下载。这非常有用iupdate object documentation

这是我的“第一”代码方法。前5个更新下载到d：\ updates目录，并列出相应的URL。

Dim session : Set session = CreateObject("Microsoft.Update.Session")
Dim search  : Set search  = session.CreateUpdateSearcher()
WScript.Echo "Searching for updates..." & vbCrLF
Set result = search.Search("IsInstalled=0 AND Type='Software' AND IsHidden=0")
WScript.Echo "Missing KBs:"
For i = 0 To result.Updates.Count -1 'last item in the collection always seems to be some kind of gibberish null.
    Set update = result.Updates.Item(i)
    WScript.Echo i + 1 & "> " & update.Title
Next
If result.Updates.Count = 0 Then
    WScript.Echo "There are no applicable updates."
End If

Set updatesToDownload = CreateObject("Microsoft.Update.UpdateColl")
Set downloader = session.CreateUpdateDownloader() 
'For I = 0 to result.Updates.Count-1
For I = 0 to 5
    Set update = result.Updates.Item(I)
    updatesToDownload.Add(update)
Next
WScript.Echo vbCRLF & "Downloading updates..."
downloader.Updates = updatesToDownload
downloader.Download()

'For I = 0 to result.Updates.Count-1
for i=0 to 5
  for each upd in downloader.Updates.Item(i).BundledUpdates
   upd.CopyFromCache "d:\UPDATES", False
   for each content in upd.DownloadContents
     wscript.echo "url: " & content.DownloadURL
   next 
  next 
next

CreateUpdateDownloader如何知道下载哪些文件？

1 个答案: