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Memory issues SBS 2003

Can anybody offer advice/comments on utilising "Large Memory" support from Microsoft.

We are not using domain or exchange services on this server, just an EPOS application. It has 4Gb installed but the software (Torex) continually produces an "an exception was raised by the server. Out of memory" error.

I know that 32bit Windows can't address more than 3.5Gb but how does LMS work and can other apps address additional memory if we added it?

This Dell Poweredge 300 has 4 spare slots available.

Thanks John Slatem
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JSlatem
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JSlatem
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Lee W, MVPTechnology and Business Process AdvisorCommented:
32 bit Windows Standard and SBS 2003 can address UP TO 4 GB of RAM depending on the hardware configuration.

I would suggest contacting Torex (never heard of them as a consultant or in passing on here and I've seen a LOT of questions on here.

Doesn't matter how many slots you may have, you will not access more than 4 GB.

Further, you should know that you are violating the SBS licensing if it's not running as a DC - running as a DC is a requirement for SBS 2003 (and all SBS versions).
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JSlatemAuthor Commented:
Thanks for your reply.

So why does MS offer LMS? The point of my original question.

I admit that this might be academic as the client plans to replace the box with a 64Bit machine in the near future and we will not be putting SBS on it (recommended by the previous EPOS supplier). Torex is a sizable EPOS software company in the UK and they are aware of the error message hence the question re LMS.

John Slatem
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Lee W, MVPTechnology and Business Process AdvisorCommented:
If by Large Memory Support you mean things like PAE, they support it in the ENTERPRISE product line not the Standard or SBS product lines as they were in the 2003 days.  Today, Standard and Data Center both support the same amount of memory.

http://msdn.microsoft.com/en-us/library/windows/desktop/aa366796%28v=vs.85%29.aspx
Note: CERTAIN versions of Windows support this and not all abilities will be realized by all versions.  Further, the way Windows processes things, all applications should have their own "virtual" 4 GB memory space and certain things like stacks and heaps, EVEN with PAE enabled on a 32 bit OS will still be limited and could cause problems.
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