Thanks a lot to Reagan, Shahid & Fraser for your valuable inputs. Just for confirmation , I am just restating that "SWPM-> "SAP Netweaver 7.0 Support release 3" option can be used for EXPORT IMPORT of SAP Netweaver 7.0 SP31 by using SWPM kernel.
@Matt Fraser: Your recommendation (backup - restore) is quite helpful , however as we are migrating from windows 2003 to windows 2008 R2 (Successor of Windows 2003, so HOMOGENEOUS), so will it be still OK? If we got ahead with this , then will the following steps work :
1. Install target vanilla system with same SID .
2. Then do DB backup restore by third party back-up tool after stopping the system.
Regards,
Nilutpal.