When I try to install SQL 2k5 Developer on a Windows 2003 SP1 cluster I keep getting an error popping up while trying to install. the error looks like this:
An Installation package for the product Microsoft SQL Server Native Client cannot be found. Try the installation again using a valid copy of the installation package 'sqlncli.msi'
Can someone please tell me what is wrong.

Cluster install fails on SQL Native client
Johan Olofsson
Nick Simmons
I suffered with this problem for about 4 hours while doing a simple install on a XP box and on a Win2K box.
Yes, your solution works: Run SQLEXPR.exe, uninstall SQL Native Client, then re-run SQLEXPR.exe.