I have been attempting to use the exec in a PHP script as follows

exec("c:\program files\utils\some.bat");

without any success.

The batch file runs a macro applications which carries out a series of tasks before exiting and returning control to the batch file and then hopefully to the PHP script.

A search of this and other sites has not provided a working solution. Any help most appreciated

Try using DOS-style short file names:

exec("c:\progra~1\utils\some.bat");

-Snib <><
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Yes tried that thanks Snib - without success