Limitations on windows 64 bit over windows 32 bit

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What are limitations on windows 64 bit over windows 32 bit from application prospective ?

64-bit Windows do not provide support for

  • Programs that are compiled for 16-bit operating systems (16-bit binaries) and
  • Kernel-mode programs that are compiled for 32-bit operating systems (32-bit drivers).
  • 32-bit applications on 64-bit platforms can address up to 2 GB, or up to 4 GB with the /LARGEADDRESSAWARE:YES linker flag

Thus, programs that depend on 16-bit binaries or 32-bit drivers cannot run on the 64-bit versions of Windows 64 bit unless the application provides an update for the program.

Adding to this following constraints also apply,

  • Microsoft SQL Server 2005 Business Intelligence Development Studio is not designed to run on the IA-64 64-bit architecture and is not installed on IA-64-based servers. SQL Server 2005 Business Intelligence Development Studio is the 32-bit development environment for business intelligence solutions.
  • If you have 64-bit (x64) management tools, SQL Server Integration Services, and SQL Server Notification Services installed as part of a 64-bit instance of SQL Server 2005, you cannot install 32-bit versions of the same components in a side-by-side configuration.
  • If you still uses SQL Server 2000 or prior versions in your environment for some connectivity / link server or remote call, you might need to dig a bit more as you might get some issues with remote queries / distributed queries.

For More Details on Running SQL Server 32 bit on windows 64 bit, check my other post.


EOF - Limitations on windows 64 bit over windows 32 bit, SQL Server 2012 , 2008 R2 , 2008 , 2005 , 2000

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