Hi Darwin, It has been many years since I hit this problem so I can't be specific, but maybe I can point you in the right direction. My similar problem involved an invalid character in a site name ("_"). It was anything but simple to fix, but can be done if you follow specific steps. You will need to get SPECIFIC info from technet, but basically this is the steps I took: Stop replication Stop affected server's exchange services Edit metabase to modify name Restart services Restart replication I think my biggest problem was the replication of the site name back to the problem server; the others sites refused to believe I had changed its name. There is several articles that deal with this problem but one was the key, and it was hard to find. Sorry I can't be more helpful. Jamie. -----Original Message----- From: Darwin O. Solano [mailto:dar.solano@xxxxxxxxxxxxxx] Sent: Sunday, 15 June 2003 2:04 PM To: [ExchangeList] Subject: [exchangelist] Upgrade from 5.5 to 2k, I did a mess.... Hi all... Last Saturday I began an Upgrade from Exchange 5.5 to Exchange 2K for a client. The server were up to Sp3 on W2K and SP4 on Exchange, everything was running smooth until I insert the Exchange 2K CD for the upgrade. The thing was that the upgrade can not be done because the name of the organization contains invalid characters; the character was an "&" in the middle of the name. The message told me that I have to change the name of the organization thru the Admin console for Exchange 5.5. I have tried everything to do it, but without success. Can anyone point me in the correct direction to solve my upgrade.? Thanks Darwin O. Solano Gerente de Ventas y Nuevos Productos Tel: (809)372-0033 Cel: (809)299-1214 Fax: (809)372-0033 (Favor de llamar antes) eFax : (509) 694-1018 (From US and Other countries only) eMail: soltec@xxxxxxxxxxxxxx <mailto:soltec@xxxxxxxxxxxxxx> dar.solano@xxxxxxxxxxxxxx <mailto:dar.solano@xxxxxxxxxxxxxx> F5 Network <http://www.f5.com/> , Best on Internet Traffic. ECORA <http://www.ecora.com/> , Best on Network Auditing tools. PANDA AV <http://www.pandasoftware.es/> , Best on Virus Detection in the World.... Tenemos materiales de oficina: Toner, Tintas, papel de Fax, etc. Llámenos y pregunte.....