>Hello,
>
>I want to find a window that contains a text string.
>I tried to use FindWindow in User32.dll, but the problem is, that I don't know the complete string, only the first part of it.
>FindWindow however needs the full name of the complete window caption.
>
>Which function can I use to find a window having only a part (the beginning of the text like "Inbox -" for example) of the text string?
>
>Thank you for your help in advance!

Use my Is_Run32() function. It's available in the Files Section under Win32 and Other APIs ("Is a Windows Application Running" is the title I think). It will return the window handle of the window based on the known portion of the title bar (the more the better, of course), and is not case sensitive.