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Using RLQUIKED to edit Exchange resources

To the question, Can I change the bounce-back message for e-mails that exceed our size limit?, you answered:

Microsoft has a tool called RLQUIKED that can edit the Exchange resource file (MDBSZ.DLL), which contains this message string.
My question is: After quickly browsing groups.google.com, many come back with "this is not possible" as an answer to the original question. Others warn it is unsupported. Have you done this with success for Exchange 2000? Did you do so on an Exchange 2000 server cluster? Do you have any tips for avoiding these problems?
MDBSZ is the Microsoft Exchange MDB Localization DLL that ships with Exchange 2000 (and prior versions). I have used RLQUIKED to edit this file on both standalone and clustered Exchange 2000 systems with much success, albeit with a bit of work. The biggest challenge is that the DLL changes with each Service Pack (and some hotfixes, too). When this happens, you lose any changes you made and you must make them again.

But more importantly, you should note the following. RLQUIKED is part of what used to be called the Resource Localization Toolkit. This used to ship with the Microsoft Developer Network (MSDN) CDs and was freely available to developers to use for resource localization. However, that does not mean you can edit third-party resource DLLs and have that third-party support those changes.

As I wrote earlier this year, you can download the RLTOOLS. However, this is a very old version of the tool, and probably not the latest version.

There is no Microsoft PSS-supported mechanism for system message customization. However, Microsoft Consulting Services can be contracted to perform this work for you in a manner in which MCS will support. This is odd because MCS and PSS merged into a single organization last year called Worldwide Services. Nonetheless, the Microsoft policy on RLQUIKED (and the RLTOOLS) is as such: PSS does not support it; MCS does, but only if you contract with them and pay them to do the customizations.

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