Opening files on desktop of workstation

Is the following command correct to open a file on the desktop of a windows 10 computer?

Lianja.showDocument("file:///%userprofile%\Desktop\bounder_brochure.pdf")

I am not sure you can use %USERPROFILE% here.
You can get the value of that environment variable with GETENV('USERPROFILE') and maybe construct it

Code:

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Lianja.showDocument("file:///"+getenv("USERPROFILE")+"\Desktop\bounder_brochure.pdf")

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Something like this:

Code:

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yourfile="bounder_brochure.pdf"

usrprof=getenv('USERPROFILE')
?usrprof

zzz=usrprof+"\Desktop\"+yourfile
?zzz

Lianja.showDocument("file:"+zzz)

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