Dim arrPCnames()
intSize = 0

Set objShell = Wscript.CreateObject("WScript.Shell")

'Get computer names
PC2Reach = InputBox("Please enter the computer name. For additional computers, separate each with a comma (,)")

'Get message
Message2Send = InputBox("Type your message.", "Send a message")

arrStations = Split(PC2Reach, ",")

'Send message
For Each PC2Reach In arrStations
objShell.Run "net send " & PC2Reach & " " & Message2Send

ReDim Preserve arrPCnames(intSize)
arrPCnames(intSize) = PC2Reach
intSize = intSize + 1

Next

'Summary of command
MsgBox "Here's you message:" & vbCrLf & _
vbCrLf & _
Message2Send & vbCrLf & _
vbCrLf & _
"Computers that got the message:"

For Each strName in arrPCNames
Wscript.Echo strName
Next