The object identifier does not represent a valid object. (Exception from HRESULT: 0x800710D8)

by Vivek 1/12/2010 12:56:00 AM

Today I came across an issue where the customer is getting “The object identifier does not represent a valid object. (Exception from HRESULT: 0x800710D8)” when you try to start the Web site.

image11

Looking at the IIS Manager, the Web site status shows:

image10

Looking closer, found the Web site identifier is set to 0.

image12

This is not a valid identifier. Tried “net start WAS” this stopped W3SVC as well. Now, ran the command “net start W3SVC”. Checked the System Event log and we see:

image13

Checked ApplicationPool in IIS Manager, and we don't see DefaultAppPool.

Looking at the applicationHost.config:

<applicationPools>
<
add name="Classic .NET AppPool" managedPipelineMode="Classic" />
<
applicationPoolDefaults>
<
processModel identityType="ApplicationPoolIdentity" />
</
applicationPoolDefaults>
</
applicationPools>

Created the DefaultAppPool and now the applicationHost.config looks good:

<applicationPools>
<add name="DefaultAppPool" />
<add name="Classic .NET AppPool" managedPipelineMode="Classic" />
<
applicationPoolDefaults>
<
processModel identityType="ApplicationPoolIdentity" />
</
applicationPoolDefaults>
</
applicationPools>

Hit Refresh (F5) in the IIS Manager. The Default Web Site is now started. Remember to change the Default Web Site ID from 0 to 1, as that will give you some "Server Application Unavailable" error as well.

Happy troubleshooting,
Vivek Kumbhar


Quote of the day:
If you are not criticized, you may not be doing much. - Donald H. Rumsfeld

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IIS 7 | Troubleshooting

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