How to install multiple databse instances on SQL2005 server

Hi,

Client wanted to install multiple database (ECC,XI,BIW,EP)in single

server using SQL2005. CI is different server but datase is common server

with multiple databse instances.

My question is how to install second SQL database instance setup.exe

with diffrent named SID like first SQL installation . Or we just need to

copy binaries files only then install SAP databse instance.

for ex:I know oracle on Unix we need to copy only \oracle\C11\ora92

need to copy in \oracle\D11\ora92 , no need to setup setup.exe.

Like that in SQL2005 for second instance what we have to do. We just

copy installbles binary files or we have to setup.exe for second databse

also.

Please suggest .

Thanks

Lisa