3rd party app supported on 32-bit sql, but not 64-bit?

Hi,

We have a 3rd party application which supports its DB running on SQL 2005.

Its a standard client/server windows application - very good, stable app.

They have told us that they only support it when it is running on 32-bit version of SQL 2005. Not 64-bit.

Is that common? Is that sensible?

Are there any differences on the DB Engine between 32-bit and 64-bit which would force them into that position?

Thanks,

Daniel.

There is no external difference between a 64bit and a 32bit SQL server. Unless they are installing something, like the app, on the server itself just tell them it is 32bit.

|||Actually unless their code is compiled with the AnyCPU build option you could run into issues related to installing a 32bits application in a 64bits box. In Win2003 server you have to run the code in WOW64 which is running it in 32bits mode but that will not resolve issues that require the AnyCPU build option. The main issue is that the application layer may not run without needed modifications. I am a beta 1 volunteer of the SQL Server 64bits project. Post again if you still have questions.