Excel / VBA / Outlook Integration - Attach Most Recent File

I am trying to create a script for a manually morning process that I need to complete that entials downloading a number of .PDF files and sending them out to a distribution list. I am unable to automate that actual saving of the files onto the network drive, but I believe I can automate the process of attaching them to the email. I have run across some problems so far though, this is what I have been able to come up with. After doing a bit of research it seems as though using cmd would be the best way to locate and attach the file but I am still unable to get it to run properly:

Code:
Sub AttachMultiple()
With CreateObject("Outlook.Application").CreateItem(0)
.To = "test@gmail.com"
.Subject = "Test"
.Attachments.Add Split(CreateObject("wscript.shell").exec("cmd /c Dir 'G:Client ReportingMGIDaily
ReportsAGFAJune 2013*.pdf' /b /o-d").stdout.readall, vbCrLf)(0)
.Send
End With
End Sub

Here is an example of a folder I will be trying to pull the most recent saved PDF from, there are about 10 similar folders:

I feel like I am relatively close to completely this, my cmd syntax may just be a little off.