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I'm trying to execute LPR.exe command to print some labels on a printer. However as its normal, problems occur. I could not find answer on any topic conneced with "sytem exec". I already tried all described methods (I think so). That's why I'm asking very kindly for any help. When trying to execute or call the LPR.exe from System exec VI, I'm receiving error: "'C:\Windows\System32\lpr.exe' is not recognized as an internal or external command, operable program or batch file." Generally I would like to call function: "lpr -S 192.168.1.5 -P lp C:\test\do_druku.txt" which works from