DB Doctor

Unfortunately, there is no stand alone installer for dbdoctor. I will discuss internally if this can be made available.Cadence will only maintain one viewer version going forward. Therefore, you should look for an installer for the "allegro_free_viewer_classic.exe". Hopefully somebody has this stored somewhere which they can share with you. 

The classic viewer was available for free online download up to 2022 before and during Allegro 22.1. but  is now not available since Allegro X 23.1 was launched. 

I have BRD file from Analog Device that need PCB inspection. However after I download the Allegro free viewer, it ask that the file should be updated via DB Doctor which I do not have that option. Can you update for me or send me link to download, thanks.

BTW: I dont wish to take chance to download from unsecured website for allegro_free_viewer_classic.exe as suggested below. There lot of bad stuff from internet. 

Old version viewers are here from Cadence:

https://www.cadence.com/ko_KR/home/tools/allegro-downloads-start.html

Either 16.6 or 17.4 should be able to open 16.6 brd

If you're still unable to find DB Doctor, contact Cadence technical support. They can provide specific guidance on how to obtain the tool and address any installation issues.

space waves

Excellent - looks like our previous internal requests have beared fruit.. I have tested one of these now and this older freeviewer version installs and works. Thanks jc teyssier!