>If I build the OLE server as MULTI USE i have conflics like "File is in Use " ... etc
>
>I have found somewhere that if I have Private
>data sessions I can solve the problem. Is this true ?If
>yes how can i do this ? Do i need a Form on the
>server instead of CUSTOM ole class ?

You can define the class as Session instead of Custom, if you defined the class programatically. If you defined it as a VCX, you can't make that change.

You also need to make sure your SETs are correct, such as SET EXCLUSIVE OFF.

>Note : The Program is working OK now, with the
>Single USE build. Is it worth it to change the logic ?

Hard to say: it depends on your program.