Crashes for 32-bit application pools

[UweKeim]

As described on CodePlex, the module does not work with 32 bit application pools.

The end-users see an error:

HTTP Error 503. The service is unavailable.

Plus there are several event log entries:

• The Module DLL C:\Windows\System32\inetsrv\HstsIisModule.dll failed to load. The data is the error.
• Application pool 'wiki.blabla.com' is being automatically disabled due to a series of failures in the process(es) serving that application pool.
• A listener channel for protocol 'http' in worker process '7084' serving application pool 'wiki.blabla.com' reported a listener channel failure. The data field contains the error number.

Even explicitely removing the HstsIisModule from the 32 bit web application did not improve anything.

This is a show-stopper for me. I had to deinstall.

Please fix this issue.

A workaround might be to add "preCondition="bitness64"", although I have not tried this yet.

Update 1

I made it working with the above pre-condition fix:

This worked by adding "preCondition="bitness64"" to both module entries in applicationHost.config:

• <add name="HstsIisModule" preCondition="bitness64" /> in the <modules> section
• <add name="HstsIisModule" image="%windir%\System32\inetsrv\HstsIisModule.dll" preCondition="bitness64"/> in the <globalModues> section.

Please note that this will only work if your SSL websites are 64 bit websites since my workaround turns off this module for 32 bit websites.

[FWest98]

The module uses an 64-bit integer for the max-age. The limit of an 32-bit integer equals to just over 136 years, to I don't think that will be a limitation. Also, the XML defines a normal int, I think it wouldn't even work with a bigger number. You can find an improved version over here: https://github.com/FWest98/hsts-iis-module/releases

[GLComputing]

I've had exactly the same issue with 32bit App Pools on a Win2008R2 server

[eveloki]

I've had exactly the same issue with 32bit App Pools on a Win2016 server