Fix "Unable to Register DLL/OCX" During VTube Installation
Written by Michael Cone
Updated at January 24th, 2026
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The "Unable to register" error with an exit code 0x3 occurs if the Visual C++ 2008 library is not installed on your system
You can manually install the library by running the vcredist_x86.exe program in the VTube program folder. (The program folder is always in "c:\Program Files (x86)\VTube...")
You can also download the program here: https://www.advancedtubular.com/customers/vtube/vcredist_x86.exe