You probably want to use the multiple argument system : 

system ('adrl.exe','d:\anniyan\file mod\chapter 1.doc');

[download]
With the single argument your file name will be broken up on white space and passed to the program as multiple arguments.

/J\

In reply to Re: space in filepath and in filename for system function by gellyfish
in thread space in filepath and in filename for system function by anniyan

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