How can I use FileSystemObject in Access 2007 to confirm that a file has been copied sucessfully?

I have a command button in a MS Access 2007 Database that I use to copy a file.  I want to confirm that the file has copied successfully, and I think FileSystemObject is the best way to do it.   My command button executes the following line of code on after the On Click event:

FileCopy "C:\Folder1\Retirement.xlsx", "C:\Folder1\Retirement_Copy.xlsx"

After this line of code is run, I want to run a program that searches C:\Folder1 to validate that Retirement_Copy.xlsx exists.  It it does exist, I'd like to have a message box that tells the user that the file copied successfully.  

If it does NOT exist, I'd like a message box to inform the user that the file did not copy successfully.

Thanks.  I'm getting better with VBA build in functions, but still have a long way to go.  
UTSWPedsAsked:
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TorrwinConnect With a Mentor Commented:
So, you would use that like so:
Dim sPath as String

sPath = "C:\Folder1\Retirement.xlsx"

If FileExists(sPath) Then
   msgbox "Your Success Message"
Else
   msgbox "Your Fail Message"
End if

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Dale FyeConnect With a Mentor Commented:
Use the Dir function.  It will return the name of the file if it exists:

?Dir("C:\Folder1\Retirement_Copy.xlsx")

will return

Retirement_Copy.xlsx if the file exists, or an empty string "" if not.
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UTSWPedsAuthor Commented:
This gets me part way there.  

   If Dir("C:\Folder1\Retirement_Copy.xlsx") = "" Then
    MsgBox "File Did Not Copy - Please be sure that the source file is not already open or in use by another program"
   Else
    MsgBox "File Copied Successfully"
   End If

I tested it by having the "source" file open when I clicked the button and it didn't give me the first MsgBox, as I suspected, it gave me a "Permission Denied" warning.
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TorrwinCommented:
Here's the function I use:
'Determine whether or not a file exists at the given path
Public Function FileExists(filePath) As Boolean
    On Error GoTo Error_Handler
    
    Dim fs As Object
    Set fs = CreateObject("Scripting.FileSystemObject")
    
    FileExists = fs.FileExists(filePath)
    
Clean_Up:
    Set fs = Nothing
    
    Exit Function
Error_Handler:
    msgbox err.descriptoin
    FileExists = False
End Function

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UTSWPedsAuthor Commented:
This works.  My preference would have been to have something purely done with Build-In funtions and contained within the On Click event of the command button (instead of building a function to call later in the process, as I'm not to the level of writing my own functions yet) but this solution did work very effectively.

Points were split, but it was greatly appreciated how Torrwin gave a little more explaination and direction than just the code, as that helped me know how to properly implement his instructions.  For my level of VBA knowledge, this was very important.
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