R – Enable 32-bit Applications On SharePoint

iissharepoint

I have one sharepoint application is running.
Now, I want to run this application in 32bit mode for some backward compatibility

I have Window Server2008 with IIS 7 with MOSS 2007 running.
I have changed application pool advance setting and enabled Enable 32-bit Applications

After enabling this SharePoint Site working previously stop working and Saying Internal Server Error – 500

I have seen the Eventviewer and nothing there.

If I revert back to Enable 32-bit Applications to false then all working ok.

Can anyone tell me what's happning here?

Best Answer

You must install the 32bit version of MOSS if you need to run MOSS in 32bit mode on a 64bit platform.
To determine of the current installation is 32 or 64bit, take a look in which Program Files folder it's installed into.
64bit -> \Program Files
32bit -> \Program Files (x86)

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