bitmap printer driver error

hi all,

I am making bitmap printer driver, generate bmp file as output of print command.

For that, after searching on google, i found that it can be done by modifying ddk source of OEMUNI, in that i have changed the ImageProcessing() to write the bitmapinfo header and pSrcBitmap array into file. i am able to build that oemuni.dll(usermode).

but somehow not able to make successfull result.

i have installed this bmp printer driver and i have placed VERBOSE debug mode and using debugview tool able to see log message.
i’ve got following error.

I dont know what;s problem here and also not able to get any clue of it by searching…

Please help/ppoint me to get solution of it…

[1568] OEMUNI: IOemUni::QueryInterface {B91220AC-15CC-4E7A-A21E-9591F34D6F6C} not supported.

I m using 2600.1106 on winXP.sp2v2096

Thanks in advance.