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1	Type	Name	Comment
2	INTEGER	resultString	xpxP_WAIT, xpxP_NOWAIT or xpxP_NOWAITO are the available legal valuesmode	XPX_P_WAIT : This is a synchronous call to the given process XPX_P_NOWAIT : asynchronous calls XPX_P_NOWAITO : asynchronous calls In addition to these, there are two more option that are not available directly to the user, but can be used through their direct integer code. _P_OVERLAY --> integer code = 2 --> Overlays a calling process with a new process, destroying the calling process (same effect as _exec calls). _P_DETACH --> integer code = 4 --> Continues to execute the calling process; the new process is run in the background with no access to the console or keyboard. Calls to _cwait against the new process fail (asynchronous _spawn).
3	STRING	executableName	the name of the program or ".exe" file to be started.
4	SET OF STRING	commandLineArguments	a set of strings that specifies the "command line arguments" to the actual program to be started. This argument may be INDETERMINATE.
5	SET OF STRING	environmentVariables	a set of strings that specifies the environment variables to be defined for the actual program to be started. This argument may be INDETERMINATE
6	INTEGER	exitStatus	receives the "exit status" from the actual started program. This argument may be INDETERMINATE.

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