Can I install SQL Server and Internet Information Server on the same machine?
The ClearQuest installation documentation recommends installing the IIS server on a separate machine from the database server but doesn’t say why. The first reason is that it’s impossible to obtain acceptable performance with these two servers running on the same machine. The second reason is that due to an anomaly in the Microsoft installation programs, unpredictable problems may result when IIS, SQL Server, and SQL Server Service Packs are installed on the same machine. If you have such problems and you absolutely have to install the two servers on the same machine, you may be able to rectify the problems by reinstalling the current SQL Server Service Pack after all other products are installed.