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Here is a fact: Microsoft Internet Information Server 6.0, imposes deployment restrictions on 32-bit and 64-bit applications. Specifically, IIS 6.0 can either support 32-bit applications or it can support 64-bit applications, but a single IIS instance cannot simultaneously support 32-bit and 64-bit application.

The question: can a single instance of IIS 7.0 (7.x) simultaneously support 32-bit and 64-bit applications?

Shane Madden
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Miguel Perez
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1 Answers1

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In IIS7, there is an Advanced Setting for each Application Pool called Enable 32-Bit Applications. So as long as they are separate Applications using separate App Pools, the answer is yes.

You can associate an entire Web Site with an App Pool (in Advanced Settings of the Web Site), or you can add a path-specific Application to a Web Site (so one Web Site could actually use multiple App Pools).

Paul Karlin
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