The feed can be sent to many destinations, including popular streaming websites like YouTube and Twitch It also is really good for recording and broadcasting. It can also handle scene-composition and encoding. It provides real-time source and device capture.I don't think this is a Windows 7 SP1 specific issue.OBS Studio is an open-source application that allows for streaming and recording.

The consequences are the 'Start Virtual Camera' button does not appear in the Control dock and I believe the virtual camera module isn't loaded. This leads to the variable vcamEnabled being set to false. The outcome is if only the 64-bit version has been registered, the registry query only looks for the 32-bit key which it doesn't find. I think this is because the boolean bitwise OR is testing against the boolean value of false. From my limited understanding and testing, it appears to me that in vcam_installed(), the code which determines whether to access the 64-bit or 32-bit CLSID registry key for the registered obs-virtualcam module is only returning the KEY_WOW64_32KEY to OR with the flags variable. If both the 32-bit and 64-bit versions are registered the button also appears.īuilding the Debug version and starting a debugging session I see that in obs_module_load() in dshow-plugin.cpp, vcam_installed(false) is being called. If I manually un-register the 64-bit version then manually register only the 32-bit dll the button appears when OBS is started.

When I manually register only the 64-bit dll using regsvr32 as described in the installation batch file, the registration completes successfully but when OBS is started the 'Start Virtual Camera' button is not present in the Control dock. When running the batch installer file (virtualcam-install.bat) to register obs-virtualcam-module64.dll it doesn't complete successfully unless I also build the 32-bit version. I have enabled the build time virtual camera option and the 64 bit obs-virtualcam-module64.dll has been successfully built. I have successfully built and run the 64-bit version of OBS 27.0.1 on MSVC 2019 with latest updates, under Windows 7 SP1 64-bit. I hope this is the correct forum for my questions about the the built-in virtual camera feature which was introduced sometime in the v26 series.

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