Sunday, August 25, 2013

Running IIS Express in 64 bit mode

The following registry key will make IIS Express run in 64 bit mode.

VS2012
reg add HKEY_CURRENT_USER\Software\Microsoft\VisualStudio\11.0\WebProjects /v Use64BitIISExpress /t REG_DWORD /d 1

VS2013
reg add HKEY_CURRENT_USER\Software\Microsoft\VisualStudio\12.0\WebProjects /v Use64BitIISExpress /t REG_DWORD /d 1

According to Microsoft this is not supported though. I found the info here.

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