Friday, January 28, 2005

Displaying what version of Exchange your using (Enterprise or Standard) via Script

Somebody asked me this question this week and what I thought would be quite easy turned out to be a little hard. On a Exchange 2003 box there is a WMI class Exchange_Server that you can use to do this and there is a sample in the Exchange SDK here.

But this WMI class isn’t available in Exchange 2000, The PSS knowledge base offers two solutions one is based on looking for event id 1217 or 1216 in the event log and the other one is to use the Guid from the Uninstall key in the registry and they supply all the Guid's for Exchange 2000 Q296587. Unfortunately there didn’t seem to be the same information available for Exchange 2003. A check of the ExBPA which seems to be using the same method did yield all the GUID'S for Exchange 2003 as well as the SBS versions. The Exbpa actually makes quite a good scripting reference if you have a look at the “ExBPA.Config.xml” config file there’s quite a lot of good information about how they are going about retrieving various pieces of information used in this tool.

So putting this together in a script meant using the StdRegProv WMI class to connect to the registry of each server then going though the keys of the uninstall tree looking for the GUID. I combined this will a little code that queried for all the exchange servers in a domain and also grabbed the serialnumber AD property which contains the Build number and service pack of the Exchange server .And the result is the following script that will show which version of Exchange you are using (Standard, Enterprise, SBS or Eval) and what build number and service pack each server is running. I’ve posted a download copy of the script here

The code looks like

set conn = createobject("ADODB.Connection")
set com = createobject("ADODB.Command")
Set iAdRootDSE = GetObject("LDAP://RootDSE")
strNameingContext = iAdRootDSE.Get("configurationNamingContext")
Conn.Provider = "ADsDSOObject"
Conn.Open "ADs Provider"
svcQuery = "<LDAP://" & strNameingContext & ">;(objectCategory=msExchExchangeServer);name,serialNumber,distinguishedName;subtree"
Com.ActiveConnection = Conn
Com.CommandText = svcQuery
Set Rs = Com.Execute
Wscript.echo "Exchange Servers Versions"
While Not Rs.EOF
arrSerial = rs.Fields("serialNumber")
For Each Serial In arrSerial
strexserial = Serial
ExVersion = getExversion(rs.fields("name"))
wscript.echo rs.fields("name") & " " & ExVersion & " " & strexserial
Set Rs = Nothing
Set Com = Nothing
Set Conn = Nothing

function getExversion(strComputer)
const HKEY_LOCAL_MACHINE = &H80000002
Set objReg=GetObject("winmgmts:{impersonationLevel=impersonate}!\\" _
& strComputer & "\root\default:StdRegProv")

strKeyPath = "Software\Microsoft\Windows\CurrentVersion\Uninstall\"
objReg.EnumKey HKEY_LOCAL_MACHINE, strKeyPath, arrSubKeys

For Each subkey In arrSubKeys
select case ucase(subkey)
case ucase("DB20F7FD-67BC-4813-8808-78F63E89EB56") ExVersion = "Exchange 2000 Standard"
case ucase("775CF3DA-C007-4709-B4CC-CE2239BE2E03") Exversion = "Exchange 2000 Standard"
case ucase("FC6FA539-452D-4a9b-8065-C1FA74B86F83") ExVersion = "Exchange 2000 Standard Evaluation"
case ucase("D3574E0C-360A-44d5-858C-33323C2D79F2") ExVersion = "Exchange 2000 Enterprise"
case ucase("F8567801-906B-439b-8D6A-87BDFEC9BA52") ExVersion = "Exchange 2000 Enterprise"
case ucase("65D9643D-06E8-47d6-865E-80F4CC9BB879") ExVersion = "Exchange 2000 Enterprise"
case ucase("8B102332-6052-4af3-ADFA-35A3DED0506A") ExVersion = "Exchange 2000 Enterprise Evaluation"
case ucase("ee2d3727-33c0-11d2-ab50-00c04fb1799f") ExVersion = "Exchange 2000 Standard SBS"
case ucase("EAE76D62-2691-4883-8BBB-1F2EE6D370D5") ExVersion = "Exchange 2003 Standard"
case ucase("9682A75B-EBD1-4c7d-88F9-13BE236F706C") ExVersion = "Exchange 2003 Standard"
case ucase("9161A261-6ABE-4668-BBFA-AD06B3F642CF") ExVersion = "Exchange 2003 Standard"
case ucase("D8862944-4F8A-429d-9A4F-6F201428FB0C") ExVersion = "Exchange 2003 Standard Evaluation"
case ucase("C160866F-DE53-434f-ADF1-CC42ABBF8778") ExVersion = "Exchange 2003 Standard Evaluation"
case ucase("74F3BB3C-A434-48fa-AAC1-3FC37CD2B0DB") ExVersion = "Exchange 2003 Enterprise"
case ucase("7F4210A8-D3B4-480a-835E-D5DAA0D0B157") ExVersion = "Exchange 2003 Enterprise"
case ucase("4050D45F-9598-44bc-8C07-4C1BBE22EFBB") ExVersion = "Exchange 2003 Enterprise"
case ucase("F95DE19F-CF69-4b03-81B6-9EC050D20D3B") ExVersion = "Exchange 2003 Enterprise"
case ucase("3D5A0E1C-B6DA-42a7-A871-03CD2E30FEA3") ExVersion = "Exchange 2003 Enterprise Evaluation"
case ucase("2B8EC4BD-5638-47e2-8817-1A50B38A828D") ExVersion = "Exchange 2003 Enterprise Evaluation"
case ucase("5717D53E-DD6D-4d1e-8A1F-C7BE620F65AA") ExVersion = "Exchange 2003 Standard SBS"
end select
getExversion = ExVersion
end function