Create instance in mof file without provider

Hi,
I have encountered following problem:
sblim-gather-provider is using `instance of' for creating instance. The 
instances class defined in different mof file, but for the defined class 
is not provided any provider. And the `instance of' creation of instance 
fails with ERR_NOT_SUPPORTED.

Is it somehow possible to create instance of some class without provider 
for such class in mof file?

Thanks.

RR