| Feature | 32-bit (x86) | 64-bit (x64) | | :--- | :--- | :--- | | | 32 GB | 1 TB (Enterprise) | | CPU Support | 4 sockets (max 32 cores) | 8 sockets (max 64 cores) | | Driver Availability | Easier for vintage hardware | Harder – mostly server-grade (HP ProLiant G5, Dell PowerEdge 2950) | | Software Compatibility | Runs all 16-bit and 32-bit apps | Runs 32-bit (via WOW64) and 64-bit only | | Use Case | Old ERP clients, legacy print servers | Hyper-V host (Windows Server 2008 R2 wasn't out yet), large SQL Server 2005 |
Introduced with the R2 release to allow identities to be shared across multiple organizations. windows server 2003 r2 enterprise sp2 -32 64 bit- iso
Improved management of shared folders across different servers. | Feature | 32-bit (x86) | 64-bit (x64)
