using a DLL/ActiveX library on a linux webserver

Yes there is a .NET version available. how do I use it in linux. I read that there is a MONO cross platform I can use but where do I start.thx

Sergey, thanks for your help but I have another question:
I have a simple VC++ 6 project that reads from the Clibboard an image , do some processing (by calling an external DLL )and display back the results in a window. I need to create a console version that take 1 parameter and output the result. I guess it will be compiled on mono to be able to run it on linux. If you can help me or know someone to help me, I don't mind paying a fee.
Just to give you an idea, here is the content of the main.cpp file:
#include "stdafx.h"
#include "recoicr.c"

int APIENTRY WinMain(HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR lpCmdLine,
int nCmdShow)
{
LoadICRLibrary();
int Session= ICR_Init("demo", "demo");
ICR_SelectRecognizer(Session, ".\\digit.rec");

long hBitmap;

char RecognizedString[255];


bool bAvail= IsClipboardFormatAvailable(CF_DIB);

hBitmap = 0;



if (bAvail)
{

::OpenClipboard(NULL);

hBitmap = (long) GetClipboardData(CF_DIB);


int nChar= ICR_RecognizeLine(Session, (long) hBitmap, 0);

::CloseClipboard();

if (nChar>0) {

nChar = ICR_GetResultValue(Session, RecognizedString);

RecognizedString[nChar]=0;


MessageBox(NULL, RecognizedString, "RESULT", MB_OK);
}
else MessageBox(NULL, "No data recognized !", "ERROR", MB_OK);


}

else

MessageBox(NULL, "Unable to paste DIB", "ERROR", MB_OK);




ICR_Done(Session);

FreeICRLibrary();

return 0;
}