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How to use a 32-bit QuickLook plug-in on a 64-bit Mac

September 3, 2013

Not all QuickLook plugins will work immediately after

Some very nice QuickLook plug-ins are not 32/64 binaries, and require an extra step to get them working (without logout or reboot) on 64-bit Macs. 32-bit plug-ins are handled via the quicklookd32 daemon, a separate build of quicklookd (which is often just a native 64-bit binary). So you have to kill this server as the usual reseting the QuickLook plug-in listing does’t seem to affect it.

So here are the steps:

  1. Move your plug-in to the desired QuickLook folder (/Libary/QuickLook/ or ~/Library/QuickLook).
  2. Run this on the terminal:
    killall quicklookd32
    qlmanage -r
  3. You should now be able to use the 32-bit plugin as normal.

Caveat: Using a direct command like qlmanage -p FILE on the Terminal will always fail with a 32-bit plug-in on a 64-bit machine as a 64-bit native applications can’t load 32-bit code.

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From → Mac Tips

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