help does not open support website

MATLAB R2018b

When I click on Help ? button, then click on Support Web Site, I get the following error message:

One or more output arguments not assigned during call to "varargout".

Error in web>openWindowsBrowser (line 382)

[stat,output] = dos(strcat('cmd.exe /c rundll32

url.dll,FileProtocolHandler "', html_file, '"'));

Error in web (line 157)

stat = openWindowsBrowser(html_file, options);

[Walter Roberson]

what shows up for

which -all dos

[Gerald DiBona]

C:\Program Files\MATLAB\R2018b\toolbox\matlab\general\dos.m

[Walter Roberson]

That looks okay. I am not sure why the problem is showing up.

[Jan]

@Gerald: Prefer to post the question as text instead of using an attached file.