Virtualization Pro Tips Blog

Installing vSphere onto 64-bit Windows Server? You’ll Need a 32-bit DSN.

If you’re trying to install vSphere onto an x64 Windows server, you might have hit a snag where the installation requests the creation of a 32-bit Data Source Name (DSN) for its database.  If you’re attempting to create that DSN through the “regular” Data Sources (ODBC) administrative tool, you’re going to have a problem.

The “regular” ODBC console only has the capability of creating system DSNs that are used by x64 processes.  What you need is the “other” ODBC console that works for x86.

You can find it at:  %systemdrive%\Windows\SysWoW64\Odbcad32.exe

You will also need the SQL Native Client, which you can download from

More information about this problem can be found in VMware’s ESX 4.0 and vCenter Server 4.0 documentation here.

Get more great virtualization tips, just like this one at

Hide comments


  • Allowed HTML tags: <em> <strong> <blockquote> <br> <p>

Plain text

  • No HTML tags allowed.
  • Web page addresses and e-mail addresses turn into links automatically.
  • Lines and paragraphs break automatically.