Good morning,First, some info on setup:Domain Controller: Windows 2003 SBS serverExchange server: Windows 2008 Standard, 64bit, 14Gb memoryCurrent version: 2007 SP1While trying to upgrade SP1 to SP2, I keep getting this error message. I've tried running setup /PrepareSchema (goes through fine) and setup /PrepareAD (which fails with the same message)Organization PreparationFailed Error:Unexpected error [0x6536988] while executing command '$error.Clear(); foreach ($lcid in (get-DsnSupportedLanguages)) { $lcidStr = $lcid.ToString([System.Globalization.NumberFormatInfo].InvariantInfo); install-Container -Name:"Transport Settings","DSN Customization",$lcidStr -DomainController $RoleDomainController; install-Container -Name:"Transport Settings","DSN Customization",$lcidStr,"Internal" -DomainController $RoleDomainController; install-Container -Name:"Transport Settings","DSN Customization",$lcidStr,"External" -DomainController $RoleDomainController; }'. Multiple ambiguous overloads found for "ToString" and the argument count: "1". Warning:An unexpected error has occurred and debug information is being generated: Unexpected error [0x6536988] while executing command '$error.Clear(); foreach ($lcid in (get-DsnSupportedLanguages)) { $lcidStr = $lcid.ToString([System.Globalization.NumberFormatInfo].InvariantInfo); install-Container -Name:"Transport Settings","DSN Customization",$lcidStr -DomainController $RoleDomainController; install-Container -Name:"Transport Settings","DSN Customization",$lcidStr,"Internal" -DomainController $RoleDomainController; install-Container -Name:"Transport Settings","DSN Customization",$lcidStr,"External" -DomainController $RoleDomainController; }'. Elapsed Time: 00:01:11I'm sure someone, somewhere, has come across this... I've tried google, and nothing really seemed appropriate.Adam

Adam,Please post the log the setup created, it can be found in c:\ExchangeSetupLogs. Which setup do you use to prep the schema and from which server do you perform this. If from the Windows 2003 SBS server keep in mind you will need the 32-bit version of Exchange to prep the schema and forest.Regards,JohanExchange-blog: www.johanveldhuis.nl

Good morning Johan,The /preapreAD is being run from the 2008 Server (not R2) which hosts the Exhange server. I was slightly vary of running it on the SBS server, as even though AD is synced between the two servers, I was under the impression that the way they look and feel is still different - and I didn't fancy spending my weekend in the office if the upgrade goes wrong! But if you suggest that the /PrepareAD should be run on the SBS server, I will try that.I've posted the files here:http://aitchgroup.com/exchlogs/ExchangeSetup.loghttp://aitchgroup.com/exchlogs/ExchangeSetupWatson.loghttp://aitchgroup.com/exchlogs/Install-ExchangeOrganization-20100211-0740010012.ps1A.

Hi Adam,You need to run the setup.com /prepareAD exchange server 2007 SP2 (32 bit) on the SBS server.Also you need to run setup.com /PD as well.All the best :)- Nagesh