Error: Application for .reportproj not installed

Getting error when try to open report project:
The application for D:\Documents and Settings\Administrator\My
Documents\Visual Studio Projects\WinfundsReports.rptproj is not installed.
Make surethe application for the project type (.rptproj) is installed.
Everything had been working fine for a year!
Note: Busuness Intelligence Projects no longer appears in the list of
available project types when setting up new project.
Is this controlled by something in the config files, or will I have to
reinstall Rptg Services?
Thanks.
AlanFollowup Question:
Is there a file that will re-register reporting services withou a complete
re-install?
Thanks.
Alan

Error While Installing SQLServer CE

Hi,
I'm attempting to install SQL Server CE on a freshly built Windows XP (IIS 5.1).
I am an administrator on the machine.
I have run Windows Update on the Server, installed .NET Framework 1.1 SP1
and SQL Server 2000 with Service pack ...SP3a.
My Sql Server Registration lists the Product Version as 8.00.760.
I have attempted to install SQL Server CE using the setup.exe version
2.11.15.0 and sqlce20sql2ksp3a.exe version 2.11.15.0.
I have rebooted the machine.
I still get the error "SQL Server CE Server Tools is compatible only with
SQL Server 2000 Service Pack 1 or higher. etc..."
Does anyone have any ideas?
Thanks,
Sailu

Try running MSI (You can extract sqlce20sql2ksp3a.exe into a folder and get the MSI). This is a work around. But, one thing cleear is why Version Check by setup.exe fails.

Thanks,
Laxmi NRO MSFT, SQL Mobile, Microsoft Corporation