GUID of SISS Project in VS2010 is different than that of what it was in VS2008. Why?

In my VsPackage I check the GUID of the project to make some decisions specific to the project type. 

I am seeing that in VS2010 the GUID of SISS Project is changed than what it was in VS2005 and VS2008.

GUID for other BI Project templates are not changed as such, then why for SISS Project?

As a workaround, is there any other way to find out what kind of project (like BI Project, Setup Project, etc) the IVsHierarchy is referring to?

Please help asap.

Thanks in advance,

Regards,

Ganesh Agrawal

Thanks, Ganesh Agrawal