Windows 2008 R2: What does 64-bit change about RDS?

The 64-bit Windows Server 2008 R2 offers direct access to more virtual and physical memory than 32-bit systems and processes more data per clock cycle, enabling more scalable, higher performing computing solutions. While Windows Server has supported 64-bit platforms for the past several versions, Windows Server 2008 R2 ships with a 64-bit SKU only; no […]

The 64-bit Windows Server 2008 R2 offers direct access to more virtual and physical memory than 32-bit systems and processes more data per clock cycle, enabling more scalable, higher performing computing solutions. While Windows Server has supported 64-bit platforms for the past several versions, Windows Server 2008 R2 ships with a 64-bit SKU only; no 32-bit SKU is available for the server version of the operating system. There’re two 64-bit Windows platforms: x64-based and Itanium-based.

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References: Running 32-bit Applications | 64-bit System Design page | Porting Your Driver to 64-Bit Windows