Oracle and Windows 7 – How to install a Loopback Adapter

Installing Oracle 10g -12g with OEM on windows 7 requires you to add/configure MS Loopback adapter. Because Oracle with OEM needs an adapter with fixed IP address assigned to it. I don’t know why this time the old “” localhost is not enough.

While the Oracle install guide lists the ways to add the loopback adapter in Windows 2000 upto Windows Vista, ways to do the task in Windows 7 is not yet there. Perhaps because the windows 7 is still in its Beta stage or as of this writing in RC stage.

But for those people like me who likes to live on the bleeding edge of technology this is a challenge.
How do we add/configure loopback adapter in Windows 7? At first I thought it would be just like the way we do it in Vista. After trying that path I know you too got stuck in the “searching for device screen” that takes you nowhere except pressing “cancel” button. I even waited for hours for this screen to timeout and give me the option to “Manually add new device” but no luck..”cancel” is the only way to go.

I guess the windows 7 developers at MS was so confident that they got every device on earth covered and their add device wizard can cath it.

There is also that link under the screen that asks you “What if Windows does’nt find my device?”
Clicking that link also takes us nowhere.. 😦

Last night I told myself “thats it” i’m ditching windows 7 and go back to good old reliable XP sp3.
Luckily this morning i stumbled upon an article in MS forum that mentioned that use of hdwwiz.exe to solve the problem. Here it is:

To install a  Microsoft Loopback adapter in WIndows 7

1. Click Start – Search for cmd, right-click cmd and select “Run as Administrator”
2. From the command prompt, run “hdwwiz.exe“.

This should launch the “Add Hardware Wizard“. Click Next.

and since a picture is worth a thousand words..i’ll give you several thousand words worth of pictures 😀

Followed by several clicks of “Next” button and a “Finish”. We are done!! All that is left to do i to assign an IP address to the new adapter. Pick one from private address pool (RFC1918).


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