Symantec Mail Security offered by techsoup (DiscounTech)

Does anyone know if the Symantec Mail Security for Microsoft Exchange 4.0 offered here by techsoup (DiscounTech) is Symantec's current email virus offering or is the the version for MS Exchange 4? If it is for Exchange 4 I doubt that it is of much use as most organizations who are running Exchange are probably on v5.5 and may be planning to move to more current versions. In my case I am on 5.5 and run Symantec's (Norton) AV solution on my Exchange Server but will have to proceed cautiously before upgrading if I cannot get an email scanning tool for Exchange 2000 or Exchange 2003 at a reasonable cost. I will say that Symantec'c AV corporate version works pretty well.

Hello.

In the Features section of the entry, it indicates that the program "Supports Microsoft Exchange 2000 and Microsoft’s new Virus Scanning API 2.0.":

[ Link ]

I believe 4.0 is the Symantec program version.