I have created a system DSN for connecting to sql but when I ran the setup of
vcenter4.1 it throws an error no 64 bit DSN found.
Therefore to work around this issue just create a sytem DSN & after that
open regedt32 on server go to HKLM>Software>ODBC>DSN that you have created & replace its driver
After this setting try again & manually enter the DSN name in setup when it is asked.
🙂 🙂 🙂 🙂