thanks for your answer but i ve done all of that already and believe me, i ve done even much more. i even managed to find it on my pc ......(something that i downloaded had to be somewhere on my pc, i just had to look at the right place. and i did. it was in "SYSWOW64" directory). but still when i selected it through "open with", it still wouldn t start.
so i decided to go for an open source alternative...http://www.topshareware.com/SWF-Opener-download-11943.htm
and it s working just fine......