problem with msvcrt.dll

[stefo]

Hi everybody,

I am using ActiveX (plugin2, 0.8.6.c) in VB6 .
I am developing application to control my video card by dshow.
My video card is Hauppauge HVR-1110.
I am able to set up video card correctly, I can watch incoming signal to video card in VLC activeX.
The problem will always appear after certains number of attempt to access video card.
The error message box with text "application has encountered a problem a needs to close. We are sorry for the inconvenience" will appear.
The details informations says about problem with MSVCRT.dll (version 7.0.2600.2180).

I try to change some parameters of video card, update video card driver, update directx (at present 9.0c), but no result.
I always get mentioned error after certains number of attempt to access video card.

I would appreciate some help.

Thanks in advanced

Stefo