我在outlook 2007中使用下面的宏从我在一个文件夹中的所有电子邮件中下载所有附件，但是发生的事情是该过程在500个左右的文件下载后冻结。这可能是一个记忆问题，如果是这样我怎么检查？
我用少于100封电子邮件对其进行了测试，问题仍然存在，但是现在流程成功完成，确认窗口显示已下载的附件数量，例如1256，但在输出文件夹中，项目数仍为500多次尝试，似乎我无法下载超过500个附件。我猜这是一个与@niton在下面消化的问题不同的问题，因为打开的项目少于250件。
#If VBA7 Then
' The window handle of Outlook.
Private lHwnd As LongPtr
' /* API declarations. */
Private Declare PtrSafe Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, _
ByVal lpWindowName As String) As LongPtr
#Else
' The window handle of Outlook.
Private lHwnd As Long
' /* API declarations. */
Private Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, _
ByVal lpWindowName As String) As Long
#End If
' The class name of Outlook window.
Private Const olAppCLSN As String = "rctrl_renwnd32"
' Windows desktop - the virtual folder that is the root of the namespace.
Private Const CSIDL_DESKTOP = &H0
' Only return file system directories. If the user selects folders that are not part of the file system, the OK button is grayed.
Private Const BIF_RETURNONLYFSDIRS = &H1
' Do not include network folders below the domain level in the dialog box's tree view control.
Private Const BIF_DONTGOBELOWDOMAIN = &H2
' The maximum length for a path is 260 characters.
Private Const MAX_PATH = 260
' ######################################################
' Returns the number of attachements in the selection.
' ######################################################
Public Function SaveAttachmentsFromSelection() As Long
Dim objFSO As Object ' Computer's file system object.
Dim objShell As Object ' Windows Shell application object.
Dim objFolder As Object ' The selected folder object from Browse for Folder dialog box.
Dim objItem As Object ' A specific member of a Collection object either by position or by key.
Dim selItems As Selection ' A collection of Outlook item objects in a folder.
Dim atmt As Attachment ' A document or link to a document contained in an Outlook item.
Dim strAtmtPath As String ' The full saving path of the attachment.
Dim strAtmtFullName As String ' The full name of an attachment.
Dim strAtmtName(1) As String ' strAtmtName(0): to save the name; strAtmtName(1): to save the file extension. They are separated by dot of an attachment file name.
Dim strAtmtNameTemp As String ' To save a temporary attachment file name.
Dim intDotPosition As Integer ' The dot position in an attachment name.
Dim atmts As Attachments ' A set of Attachment objects that represent the attachments in an Outlook item.
Dim lCountEachItem As Long ' The number of attachments in each Outlook item.
Dim lCountAllItems As Long ' The number of attachments in all Outlook items.
Dim strFolderPath As String ' The selected folder path.
Dim blnIsEnd As Boolean ' End all code execution.
Dim blnIsSave As Boolean ' Consider if it is need to save.
blnIsEnd = False
blnIsSave = False
lCountAllItems = 0
On Error Resume Next
Set selItems = ActiveExplorer.Selection
If Err.Number = 0 Then
' Get the handle of Outlook window.
lHwnd = FindWindow(olAppCLSN, vbNullString)
If lHwnd <> 0 Then
' /* Create a Shell application object to pop-up BrowseForFolder dialog box. */
Set objShell = CreateObject("Shell.Application")
Set objFSO = CreateObject("Scripting.FileSystemObject")
Set objFolder = objShell.BrowseForFolder(lHwnd, "Select folder to save attachments:", _
BIF_RETURNONLYFSDIRS + BIF_DONTGOBELOWDOMAIN, CSIDL_DESKTOP)
' /* Failed to create the Shell application. */
If Err.Number <> 0 Then
MsgBox "Run-time error '" & CStr(Err.Number) & " (0x" & CStr(Hex(Err.Number)) & ")':" & vbNewLine & _
Err.Description & ".", vbCritical, "Error from Attachment Saver"
blnIsEnd = True
GoTo PROC_EXIT
End If
If objFolder Is Nothing Then
strFolderPath = ""
blnIsEnd = True
GoTo PROC_EXIT
Else
strFolderPath = CGPath(objFolder.Self.Path)
' /* Go through each item in the selection. */
For Each objItem In selItems
lCountEachItem = objItem.Attachments.Count
' /* If the current item contains attachments. */
If lCountEachItem > 0 Then
Set atmts = objItem.Attachments
' /* Go through each attachment in the current item. */
For Each atmt In atmts
' Get the full name of the current attachment.
strAtmtFullName = atmt.FileName
' Find the dot postion in atmtFullName.
intDotPosition = InStrRev(strAtmtFullName, ".")
' Get the name.
strAtmtName(0) = Left$(strAtmtFullName, intDotPosition - 1)
' Get the file extension.
strAtmtName(1) = Right$(strAtmtFullName, Len(strAtmtFullName) - intDotPosition)
' Get the full saving path of the current attachment.
strAtmtPath = strFolderPath & atmt.FileName
' /* If the length of the saving path is not larger than 260 characters.*/
If Len(strAtmtPath) <= MAX_PATH Then
' True: This attachment can be saved.
blnIsSave = True
' /* Loop until getting the file name which does not exist in the folder. */
Do While objFSO.FileExists(strAtmtPath)
strAtmtNameTemp = strAtmtName(0) & _
Format(Now, "_mmddhhmmss") & _
Format(Timer * 1000 Mod 1000, "000")
strAtmtPath = strFolderPath & strAtmtNameTemp & "." & strAtmtName(1)
' /* If the length of the saving path is over 260 characters.*/
If Len(strAtmtPath) > MAX_PATH Then
lCountEachItem = lCountEachItem - 1
' False: This attachment cannot be saved.
blnIsSave = False
Exit Do
End If
Loop
' /* Save the current attachment if it is a valid file name. */
If blnIsSave Then atmt.SaveAsFile strAtmtPath
Else
lCountEachItem = lCountEachItem - 1
End If
Next
End If
' Count the number of attachments in all Outlook items.
lCountAllItems = lCountAllItems + lCountEachItem
Next
End If
Else
MsgBox "Failed to get the handle of Outlook window!", vbCritical, "Error from Attachment Saver"
blnIsEnd = True
GoTo PROC_EXIT
End If
' /* For run-time error:
' The Explorer has been closed and cannot be used for further operations.
' Review your code and restart Outlook. */
Else
MsgBox "Please select an Outlook item at least.", vbExclamation, "Message from Attachment Saver"
blnIsEnd = True
End If
PROC_EXIT:
SaveAttachmentsFromSelection = lCountAllItems
' /* Release memory. */
If Not (objFSO Is Nothing) Then Set objFSO = Nothing
If Not (objItem Is Nothing) Then Set objItem = Nothing
If Not (selItems Is Nothing) Then Set selItems = Nothing
If Not (atmt Is Nothing) Then Set atmt = Nothing
If Not (atmts Is Nothing) Then Set atmts = Nothing
' /* End all code execution if the value of blnIsEnd is True. */
If blnIsEnd Then End
End Function
' #####################
' Convert general path.
' #####################
Public Function CGPath(ByVal Path As String) As String
If Right(Path, 1) <> "\" Then Path = Path & "\"
CGPath = Path
End Function
' ######################################
' Run this macro for saving attachments.
' ######################################
Public Sub ExecuteSaving()
Dim lNum As Long
lNum = SaveAttachmentsFromSelection
If lNum > 0 Then
MsgBox CStr(lNum) & " attachment(s) was(were) saved successfully.", vbInformation, "Message from Attachment Saver"
Else
MsgBox "No attachment(s) in the selected Outlook items.", vbInformation, "Message from Attachment Saver"
End If
End Sub
答案 0 :(得分：1)
尝试计算失败前处理的项目数。您可能遇到250项限制而不是文件限制。
Outlook macro runs through 250 iterations before failing with error
Sample Outlook macros to delete or move items in bulk
“当宏用于删除或移动...项目时，Outlook会在宏的整个生命周期内保持项目”打开“。例如，如果您使用宏选择并删除100个项目， Outlook将在“引擎盖下”打开100个项目，并且在宏完成运行之前这些项目将不会关闭。此设计导致使用Microsoft Exchange Server帐户一次处理250个项目的在线模式配置文件的限制。默认情况下， Exchange服务器一次将MAPI客户端限制为250个打开的邮件。使用这些宏或开发自己的宏时，请注意您一次只能选择和操作大约250个项目。此限制与有关的信息一起记录在案。在Microsoft知识库中的以下文章中重新配置限制：Event ID 9646 is logged when you try to send many messages in Exchange Server 2003“