[Wine] Need help with an old VB application

[ccxx]

Hi,
i'm not new with wine but i'm in trouble with an old vb application.
I just tried everything i know to solve but i'm still at the start point.
I want to open a document (.rtf or .doc ) with OO . This VB application needs the full path of the application i want to use to open the documents. I write down the complete and full path ( Z:/xxx/yy/oowriter ). 
The path is correct and the Writer opens quickly but with an error message like "/C:/Programs/xxx/yyy/1.RTF does not exist"
I think the application use some " Shell (application,document) " to open the docs.
What can i do in this case ? I think winepath or other registry tricks cannot apply.

Please i need help, i've just spent many ours without results.

Thank you