Hello, I didn't quite understand the question, but I'll attempt to answer it anyway.
If, flash is installed, and you want to check the version, refer to the global variable "$version". It returns the Operating System and version of Flash.
Now, re-reading your post, that doesn't look like what you're looking for, so here's this.
When Flash publishes a HTML page for a flashmovie, it's code looks like this:
<OBJECT classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=5,0,0,0"
<PARAM NAME=movie VALUE="autorun.swf"> <PARAM NAME=quality VALUE=high> <PARAM NAME=bgcolor VALUE=#FFFFFF> <EMBED src="autorun.swf" quality=high bgcolor=#FFFFFF WIDTH=400 HEIGHT=250 TYPE="application/x-shockwave-flash" PLUGINSPAGE="http://www.macromedia.com/shockwave/download/index.cgi?P1_Prod_Version=ShockwaveFlash"></EMBED>
Which I guess would be the propper syntax, it being their design and all.
Now, this code contains two links which are used if Flash is not installed on the computer, so you can manipulate those to do your dirty work.
Try changing the URLS to point to:
file://d:/path to flash install
I'm sorry if you didn't want it to install flash, but that's probably the easiest way.