how to migrate SBS 2003 to windows server 2012

systems: old SBS2003, new DC2012

1) migrate exchange 2003 to cloud (office365)

2) prepare new DC'S with AD2012 (buy AD2012 server and user cals!)

3) remove SBS2003: exchange 2003

How to Uninstall Exchange Server 2003:

http://technet.microsoft.com/en-us/library/bb125110(v=exchg.65).aspx

http://msexchangefaq.de/server/e2kremove.htm

http://msexchangefaq.de/howto/e2kuninstall.htm

4) transfer all 5 FSMO roles to new DC2012

check with: "netdom query fsmo"
check global catalog

5) transfer other roles (PKI, DNS, DHCP, ...)

- create new PKI and remove sbs2003 PKI
- AD CS: Computer autoenrollment should be enabled when an enterprise CA is installed

- certutil -dcinfo deleteBad
check for? CERTSVC_DCOM_ACCESS http://support.microsoft.com/kb/903220/de

6) move AD sites and services licensing

7) remove old 2003 AD on sbs2003 (dcpromo)
- cleanup dns zones with old entries

8) update domain and forest level of AD for fitting your enterprise

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further improvements:

9) DFS: Migrate a Domain-based Namespace to Windows Server 2008 Mode

 http://technet.microsoft.com/en-us/library/cc753875.aspx

10) migrate sysvol to dfsR:
http://blogs.technet.com/b/deds/archive/2008/09/05/win2008-sysvol-migration-von-frs-auf-dfsr.aspx

11) enable AD recycle bin http://technet.microsoft.com/en-us/library/dd379481(v=ws.10).aspx

keywords: remove old small business server 2003, get out of small business server

and: you should defenitly know what you are doing! (MCITP)