Upload Windows (x86 and x86-64) binaries.

bin/mpv/nt/x86/mpv-register.bat

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+@echo off
+setlocal
+
+"%~dp0/mpv" --register
+if %errorlevel% neq 0 (
+    echo Registration failed. Make sure mpv is in the same folder as this script.
+    pause
+    exit /b %errorlevel%
+)
+
+pause
+endlocal

bin/mpv/nt/x86/mpv-unregister.bat

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+@echo off
+setlocal
+
+"%~dp0/mpv" --unregister
+if %errorlevel% neq 0 (
+    echo Deregistration failed. Make sure mpv is in the same folder as this script.
+    pause
+    exit /b %errorlevel%
+)
+
+pause
+endlocal