Why do sites start to throw HTTP 503 error after installing google sitemap generator

Question

Why do all the sites on IIS start to throw HTTP 503 error after installing google sitemap generator?

I noticed that app pools are crashing. If I restart an app pool it crashes again after few minutes. It all started after installing the Google sitemap generator tool (sitemap_win-beta1-20091231.msi).

We did not have the problem on Windows server 2003 32bit OS and IIS6. The problem exists on IIS 7 running on Windows Server 2008 64bit OS.

Answer 1

The path of the Google SiteMap Generator Module was set incorrectly by the installer on Windows Server 2008 running 64bit OS.

C:\Program Files (x86)\Google\Google Sitemap Generator\\IIS7_Module_x64.dll

Notice the slashes before the name of the dll file.

To correct the issue do the followings:

• Click your server name in the IIS Manager
• Click ‘Modules’
• Select an entry named like ‘GoogleSiteMapGeneratorModule’ and click ‘Edit’
• Replace the double slash with a single slash in the path field
• You might need to reboot the IIS