axShockwaveFlash does not work in win7

hi,
 
i have used shockwave flash object in visual studio 2008 and it works well.
but when i move it to win7, then it simply does not work and nothing error displays.
anyone knows what is wrong? I just start using win7 64bit. thanks!
 
the code is quite simple:

axShockwaveFlash_hanzi.Update();
axShockwaveFlash_hanzi.Movie = @"..\..\..\ResourcesFiles\HZBS\" + str + ".swf";
axShockwaveFlash_hanzi.Play();