UI/installer: Add additional VS2019 DLL check

Also updates references from 2017 to 2019 for consistency.

UI/installer/mp-installer.nsi

@@ -104,34 +104,35 @@ Function PreReqCheck
 	${EndIf}
 
 !ifdef INSTALL64
-	; 64 bit Visual Studio 2017 runtime check
+	; 64 bit Visual Studio 2019 runtime check
 	ClearErrors
 	SetOutPath "$PLUGINSDIR"
-	File check_for_64bit_visual_studio_2017_runtimes.exe
-	ExecWait "$PLUGINSDIR\check_for_64bit_visual_studio_2017_runtimes.exe" $R0
-	Delete "$PLUGINSDIR\check_for_64bit_visual_studio_2017_runtimes.exe"
-	IntCmp $R0 126 vs2017Missing_64 vs2017OK_64
-	vs2017Missing_64:
-		MessageBox MB_YESNO|MB_ICONEXCLAMATION "Your system is missing runtime components that ${APPNAME} requires. Would you like to download them?" IDYES vs2017true_64 IDNO vs2017false_64
-		vs2017true_64:
-			ExecShell "open" "https://obsproject.com/visual-studio-2017-runtimes-64-bit"
-		vs2017false_64:
+	File check_for_64bit_visual_studio_2019_runtimes.exe
+	ExecWait "$PLUGINSDIR\check_for_64bit_visual_studio_2019_runtimes.exe" $R0
+	Delete "$PLUGINSDIR\check_for_64bit_visual_studio_2019_runtimes.exe"
+	IntCmp $R0 126 vs2019Missing_64 vs2019OK_64
+	vs2019Missing_64:
+		MessageBox MB_YESNO|MB_ICONEXCLAMATION "Your system is missing runtime components that ${APPNAME} requires. Would you like to download them?" IDYES vs2019true_64 IDNO vs2019false_64
+		vs2019true_64:
+			ExecShell "open" "https://obsproject.com/visual-studio-2019-runtimes-64-bit"
+		vs2019false_64:
 		Quit
-	vs2017OK_64:
+	vs2019OK_64:
 	ClearErrors
 !else
-	; 32 bit Visual Studio 2017 runtime check
+	; 32 bit Visual Studio 2019 runtime check
 	ClearErrors
 	GetDLLVersion "vcruntime140.DLL" $R0 $R1
+	GetDLLVersion "vcruntime140_1.DLL" $R0 $R1
 	GetDLLVersion "msvcp140.DLL" $R0 $R1
-	IfErrors vs2017Missing_32 vs2017OK_32
-	vs2017Missing_32:
-		MessageBox MB_YESNO|MB_ICONEXCLAMATION "Your system is missing runtime components that ${APPNAME} requires. Would you like to download them?" IDYES vs2017true_32 IDNO vs2017false_32
-		vs2017true_32:
-			ExecShell "open" "https://obsproject.com/visual-studio-2017-runtimes-32-bit"
-		vs2017false_32:
+	IfErrors vs2019Missing_32 vs2019OK_32
+	vs2019Missing_32:
+		MessageBox MB_YESNO|MB_ICONEXCLAMATION "Your system is missing runtime components that ${APPNAME} requires. Would you like to download them?" IDYES vs2019true_32 IDNO vs2019false_32
+		vs2019true_32:
+			ExecShell "open" "https://obsproject.com/visual-studio-2019-runtimes-32-bit"
+		vs2019false_32:
 		Quit
-	vs2017OK_32:
+	vs2019OK_32:
 	ClearErrors
 !endif