I am trying to install SQL Server 2008 R2 Management Studio Express on a Windows XP machine that already has SQL Server Management Studio 2005 installed on it. I would like to have both of these instances installed at the same time.
During the installation, all of the Setup Support Rules passed except for
"Consistency validation for SQL Server registry keys"
with the error
"The SQL Server registry keys from a prior installation cannot be modified. To continue, see SQL Server Setup documentation about how to fix registry keys."
All of the resources and suggested fixes I have checked so far have been unhelpful in that they haven't really dealt with my specific scenario with this error, and I don't want to modify any registry keys unless I am sure of the fix I am making. Please help!