SSIS - Why can't an Execute Process Task run VBS in [Win 2008 + SQL 2012] though it can in [Win 2003 + SQL 2008]?

Hi Experts,

I'm trying to migrate an legacy ETL system from [Win 2003 R2 x64 SP2 + SQL Server 2008 (10.0.4000)] to [Win 2008 R2 Datacenter SP1 + SQL Server 2012 (11.0.5058)].

Most of the SSIS packages works fine in the new env but an Execute Process Task failed with the error "The specified executable is not a valid application for this OS platform".

I've found that wrapping .vbs with .bat and executing .bat from SSIS works, but I would like to know what causes this difference between the two environment and if possible, avoid the modification of SSIS packages as there are so many.

I would greatly appreciate your help!

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