Compatibility: 2004SDK, 2006SDK <-> ISA 2004, ISA 2006

[Peter]

Hi,
we want to develop application filter, type: Content-Filtering.
If such filter is written in 2004SDK, is it compatible with ISA Server 2006 ?
Or is more suitable to build it in 2006SDK and will it run also with ISA
Server 2004 ?
Or is there need to build two versions of filter for both product versions ?

Thanks !
Peter

[ferrix]

You should use the most recent SDK. As long as you don't rely on
features that are introduced in 2006, you should find the filter
works fine on both systems. There is no reason to make two filter versions.

For TMG, it is 64 bit, so it will become necessary to add that
consideration in the future.

[Peter]

Thank you for the answer.
Additional question:
I have fresh information that our filter must also support old ISA 2000.
Is it still valid what you wrote - no need to create separate filter
compiled with ISA 2000 SDK ? (Assumption is that we relay only on features
present in all ISA version - 2000/2004/2006)
?

Peter

[ferrix]

Peter wrote:
> Thank you for the answer.
> Additional question:
> I have fresh information that our filter must also support old ISA 2000.
> Is it still valid what you wrote - no need to create separate filter
> compiled with ISA 2000 SDK ? (Assumption is that we relay only on features
> present in all ISA version - 2000/2004/2006)

I don't consider ISA 2000 to be the same product. There are so many
additions and changes in 2004. The filtering capabilities of 2000 are
very limited by comparison. But still, if you are very careful not to
use any 2004 or 2006 features, it could be possible. I would not do it,
I would require upgrading to a security server version that was created
within the last decade.