Question

Can anyone point me to a vbscript (using WMI) to find out the installed SQL Server version. I have a scenario where either SQL Server 2008 R2 or SQL Server 2012 could be installed on a machine.

Answer 1

Based on the code in the first Google search result here:

Dim WMI, Col, Prod, Q
Set WMI = GetObject("WinMgmts:")
Q = "Select * FROM Win32_Product WHERE Vendor = " & _
    "'Microsoft Corporation' AND Name LIKE 'SQL Server%Database Engine Services'"
Set Col = WMI.ExecQuery(Q)
For Each Prod in Col
  if left(Prod.version, 3) = "11." then
    msgbox "SQL Server 2012 was found!" & vbCrLf & prod.version
  elseif left(Prod.version, 4) = "10.5" then
    msgbox "SQL Server 2008 R2 was found!" & vbCrLf & prod.version
  end if
Next
Set Col = Nothing
Set WMI = Nothing

Note that WMI is not the fastest way to do this. Have you considered checking the registry directly instead of going through WMI?

UPDATE given OP’s solution using the registry instead, and with the assumption that exactly one of 2008R2 or 2012 could be installed:

RegKey2012 = "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\" & _
             "Microsoft SQL Server\MSSQL11.MSSQLSERVER\"
If RegKeyExists(RegKey2012) Then 
  WScript.StdOut.Write("2012") 
Else 
  WScript.StdOut.Write("2008R2") 
End If 

Function RegKeyExists(Key) 
  Dim oShell, entry 
  On Error Resume Next 
  Set oShell = CreateObject("WScript.Shell") 
  entry = oShell.RegRead(Key) 
  If Err.Number <> 0 Then 
    Err.Clear 
    RegKeyExists = False 
  Else 
    Err.Clear 
    RegKeyExists = True 
  End If 
End Function