>Hi Cetin
>
>Can you pl. explain on what the command
>ShellExecute(0,'','c:\fpd26\foxprox.exe','myDOS.prg','c:\fpd26',SW_HIDE)
>will do ?
>Where can I get what I have to passed for each parameter.
>
>Why I am asking this is because if I want to use
>pkzip or some other command on a button click what all parameters I have to pass
>and weather I can make out that job was over or error was returned.
>
>Thanks in Advance
>
>Ashish Patel

Ashish,
Below unofficial simple explanation:

ShellExecute(0,'','c:\fpd26\foxprox.exe','myDOS.prg','c:\fpd26',SW_HIDE)

1st is Hwnd of owning parent window. Might be NULL as is here.
2nd is Operation (verbs) :
-edit: Launches an editor and opens the document for editing. If lpFile is not a document file, the function will fail.
-explore: Explores the folder specified by lpFile.
-find: Initiates a search starting from the specified directory.
-open: Opens the file specified by the lpFile parameter. The file can be an executable file, a document file, or a folder.
-print: Prints the document file specified by lpFile. If lpFile is not a document file, the function will fail.

ie: (for 2nd parameter)
ShellExecute(0,'Open','c:\SomePath\mymusic.mp3','','',SW_HIDE)
or
ShellExecute(0,'Open','c:\SomePath\mymusic.mp3',0,0,SW_HIDE)

Effect is DblClicking an .mp3 file in explorer (except SW_HIDE).
This one somewhat play in background.

3rd is a file : If executable than 2nd is none. If not an executable (like above) than it's the file that would be called with Operation (2nd).

4th : Parameters sent. (with nonExecutables NULL)
5th : Working dir.
6th : App window state
Cetin