>I need to place a code to mscomm OnComm() event.
>I have found that if I place to OnComm() event in a separate class and
>add an instance of this class to form using
>
>thisform.NEWOBJECT('oCom', 'mycomm','mycomlass.vcx')
>
>OnComm() event does not fire!
>
>However, if I place a MSCOMM OLEControl directly to form and place code to its OnComm() event, OnComm() event fires!
>

A known issue. Sergey is correct - it will work dropped on a form. Go here: http://fox.wikis.com/wc.dll?Wiki~MsComm32~VFP and you will find the answer.