When my implementation of IDownloadManager.Download method is been
Invoked, I receive following parameters ..
<C++ declaration>
    IMoniker *pmk,
    IBindCtx *pbc,
    DWORD dwBindVerb,
    LONG grfBINDF,
    BINDINFO *pBindInfo,
    LPCOLESTR pszHeaders,
    LPCOLESTR pszRedir,
    UINT uiCP
<Object pascal declaration>
   pmk: IMoniker; 
   pbc: IBindCtx;
   dwBindVerb: DWORD;
   grfBINDF: DWORD; 
   pBindInfo: PBindInfo; 
   pszHeaders,
   pszRedir: PWidechar; 
   uiCP: UINT

I can use pmk->GetDisplayName to retrive the URL address being
downloaded , then pass the URL to related URLMoniker function to
perform the download operation . But what should I do when the
incoming file is posted back through a CGI program (using
httpRequest.BinaryWrite or similar method) but not a regular
Hyper-link ?

   For example , if I download a file from
http://www.somecompany.com/somefile.exe , pmk->GetDisplayName will
return a string equal to "http://www.somecompany.com/somefile.exe" ,
then I can pass the string to UrlDownloadToFile function to perform
download operation . But if I download a file from
http://www.somecompany.com/someasp.asp which will return somefile.exe
, the above operation will download the .asp file instead of the .exe
file .
   A complete example is prefered , but any useful information is
acceptable also .

Johnny

Look for a header named "content-disposition".  If it exists, it will
most likely give you the name of the file being sent to the browser.

Thanks for your comment . The problem here is how to get the related
HTTP header infomation during the callback . The pszHeaders and
pszRedir paramater are always null .