I've reinstall vfp 5.0, it's same. Unless after I reinstall vfp5, I need to reinstall VB 4.0 again, I've refer to MS KB artical no. Q139154 talking about OLE Controls licensing, there are 2 types of license, design time and run time, I don't think vfp 5 shift with run time license only.

>i think he meant to reinstall vfp5.0 again...
>
>>I need to use some features in VFP 5.0, and some bugs in VFP 3.0 have been fixed in VFP 5.0, that why I migrate to VFP 5.0
>>
>>>The easiest way! install vfp3.0 again.
>>>
>>>Sunny
>>>
>>>>I'm just uninstall my VFP 3.0 and install VFP 5.0, When I try to add a OLE control to my form, the error message
>>>>" OLE error code 0x80040112 - Appropriate license for this class not found". what does it means ? What should I don't ?
>>>>
>>>>Any body can help, thanks in advance.