Unreconised database format

hi i am encountering a nice error whenever i try to open a database i
created in access 2002

i looked up for some information and i found some info on error 3343
but that dosnt apply as i am using dao components 3.6 and not 3.51

my systen info says i am using jet 4.0 but under the JET core
components i only see 2.x 3.5 and odbc

i converted a databse from 97 format to 2000 format and to 2002 format
and i still get the unreconised database format when opening it

i have found if i open access first then use the file open method to
open the database it opens no problem i only get the problem when i
double click on the icon i need to be able to do that though ebcuase i
have another application opening the file

my vb version is 6.03 i am using windows 2000 and novell

if someone has a solution on how i can resolve this it woudl be much
appricated

Regards
Kelvan