Excel VBA Call Shell with quotes in string

I don't really know how to deal with my problem. So what i want is:

Call Shell("C:\Temp\Zint\zint.exe -d "1234"",vbNormalFocus)

I use this command in the windows command line: C:\Temp\Zint\zint.exe -d "1234"

It works only when the numbers are given between quotes.

I was unable to deal with the quotes, so please be so kinde to explain me how should i use them.

Thanks!