| Microsoft Office Access是由微软发布的关系数据库管理系统。它结合了 MicrosoftJet Database Engine 和 图形用户界面两项特点，是 Microsoft Office 的系统程序之一。Microsoft Office Access是微软把数据库引擎的图形用户界面和软件开发工具结合在一起的一个数据库管理系统。它是微软OFFICE的一个成员, 在包括专业版和更高版本的office版本里面被单独出售。2018年9月25日,最新的微软Office Access 2019在微软Office 2019里发布。 在调用SHELL之前，必须要通过以下步骤：（以在E：盘根目录下操作为例） ? ? 1、强制改变当前的驱动器： ChDrive "E"
2、强制改变默认的工作目录：chdir "E:/"
完成以上动作之后，再来调用E：/的批处理文件：shell "e:/234.bat"
这样执行的效果就和DOS下执行的效果一致。
原因在哪？这是因为SHELL的工作切入点是在Application的默认工作目录中，也就是说，除非在批处理中强行界定目标路径，否则，SHELL执行批处理时永远都是Application的默认工作目录下进行。
而Application的默认工作目录一般都是“我的文档”。你可以这样试验一下，在E：/创建一个批处理234.bat，内容是 dir >123.inf ，就是将dir列表写进到123.inf文件中，然后在立即窗口中shell "E:/234.bat" ，之后再用windows的搜索功能，搜索一下刚刚生成的123.inf文件，你就会发现这个文件是在“我的文档”中，而不是在E：/下，而在DOS下直接执行234.bat，则结果文件就自然在E:/下。
如果是在立即窗口中，依次执行
ChDrive "E"
chdir "E:/"
shell "e:/234.bat"
你再看一下，生成的文件就在E：/下了。 ?
Option Explicit
'version 0.1 2009/08/05 add Attached_SaveAs Sub Attached_SaveAs() '执行前，在工具，引用中加入"Microsoft Scripting Runtime"
Dim fso As New FileSystemObject
Dim fldr As Folder
Set fso = CreateObject("Scripting.FileSystemObject")
If fso.FolderExists("d:/GDS_HUB_Report_Used_by_Rita") Then '判断是否存在这个文件夹
fso.DeleteFolder ("d:/GDS_HUB_Report_Used_by_Rita")
Else
MsgBox "program will create a new Folder which is named 'GDS_HUB_Report_Used_by_Rita' on the D disk!"
End If
MkDir "D:/GDS_HUB_Report_Used_by_Rita"
'Shell "D:/", 0
'Shell "cd 1", 1 '调用shell命令前加入改变当前默认路径
ChDrive "D"
ChDir "D:/1/"
Shell "calc.exe", 1
Shell "C:/Program Files/7-zip/7z.exe e d:/1/1.rar", 1
Dim myOlSel As Outlook.Selection
Dim j, x, cu As Integer
Dim strFolder As String
Dim defaultPath As String
Dim YN As Integer, zipYN As Integer
Dim i As Long
Dim oApp As Object
Set oApp = CreateObject("Shell.Application")
Set myOlSel = Application.ActiveExplorer.Selection
defaultPath = "D:/GDS_HUB_Report_Used_by_Rita/"
If FileExist("C:/VBAtemp.ini") Then
Open "c:/VBAtemp.ini" For Input As #1
Line Input #1, defaultPath
Close #1
If PathExist(defaultPath) Then
YN = MsgBox(defaultPath, vbYesNo, "Save file to this path ?")
If YN = vbNo Then
strFolder = getFOLDER()
Else
strFolder = defaultPath
End If
Else
strFolder = getFOLDER()
End If
Else
strFolder = getFOLDER()
End If
zipYN = MsgBox("auto unzip ?", vbYesNo, "auto unzip ?") For x = 1 To myOlSel.Count
With myOlSel.Item(x)
cu = 0
cu = .Attachments.Count If cu > 0 Then
For j = 1 To cu
On Error Resume Next If FileExist(strFolder & "/" & .Attachments(j).DisplayName) Then
.Attachments(j).SaveAsFile (strFolder & "/" & .Attachments(j).DisplayName & "_double" & i)
If FileDateTime(strFolder & "/" & .Attachments(j).DisplayName) > FileDateTime(strFolder & "/" & .Attachments(j).DisplayName & "_double") Then
Kill strFolder & "/" & .Attachments(j).DisplayName & "_double"
Else
Kill strFolder & "/" & .Attachments(j).DisplayName
Name strFolder & "/" & .Attachments(j).DisplayName & "_double" As strFolder & "/" & .Attachments(j).DisplayName
End If
Else
.Attachments(j).SaveAsFile (strFolder & "/" & .Attachments(j).DisplayName)
i = i + 1
End If
' If FileExist(strFolder & "/" & .Attachments(j).DisplayName) Then
' i = i + 1
' End If
If zipYN = vbYes Then
If UCase(Right(strFolder & "/" & .Attachments(j).DisplayName, 3)) = "ZIP" Or UCase(Right(strFolder & "/" & .Attachments(j).DisplayName, 3)) = "RAR" Then
oApp.NameSpace(strFolder & "/").CopyHere oApp.NameSpace(strFolder & "/" & .Attachments(j).DisplayName).Items
End If
End If
Next
End If End With
Next
MsgBox "Success save " & i & " files", vbOKOnly, "complete"
End Sub Function getFOLDER() As String
Dim objShell As Object 'Shell
Dim objFolder As Object 'Shell32.Folder
Dim objFolderItem As Object Set objShell = CreateObject("Shell.Application")
Set objFolder = objShell.NameSpace(0)
Set objFolderItem = objFolder.Self Set objFolder = objShell.BrowseForFolder(0, "Select a folder:", 0, 0) If objFolder Is Nothing Then
getFOLDER = "Cancel"
Else
If objFolder.ParentFolder Is Nothing Then
getFOLDER = "C:/Documents and Settings/" & Environ("username") & "/" & objFolder
Else
getFOLDER = objFolder.Items.Item.Path
End If
End If Set objFolder = Nothing
Set objShell = Nothing If getFOLDER <> "Cancel" Then
Open "c:/VBAtemp.ini" For Output As #1
Print #1, getFOLDER
Close #1
End If
End Function Function FileExist(rFile As String) As Boolean
Dim fs As Object
Set fs = CreateObject("Scripting.FileSystemObject")
FileExist = fs.FileExists(rFile)
End Function Private Function PathExist(pname) As Boolean
Dim x As String
On Error Resume Next
x = GetAttr(pname) And 0
If Err = 0 Then PathExist = True _
Else PathExist = False
End Function
Microsoft Access在很多地方得到广泛使用，例如小型企业，大公司的部门。
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