Wow - it sounds like you don't trust this client.
Here's some ideas off the top of my head.

1) you could put in a timeout into the projector & inform the client that they have 1 week or however much you deem appropriate.

OR

2) you could put a file on your website that contains a 'key' & read it with getNetText (of course this requires that the client be connected to the web) & inform the client that the application can be remotely disabled (remove the key).

& the projector could display 'authenticating demo display' or something along that line, so that they understand/believe this.

& then of course you can remove the key so that even if they copy the CD, & nothing will work. (& then the projector could put up a big pirate skull & crossbones or something like that)

hth
-Buzz

At 11:41 PM -0700 6/19/05, you wrote:
Hi Tom,

Actually i want the client to see the demo only, I
want to prevent him from making its illegal copies and
distribute to any 3rd parties by replicating the  CD.

I know its not easy, but can you guide me in a proper
way. Its very critical for me.

Can I use any Xtras/other plugins for this, client is
ready to pay for this stuff.

Thanks,
Biu George.

--- "Thomas W.J.C. McCrystal"
<[EMAIL PROTECTED]> wrote:

 >How can i make the user only run the projector from
 CD
 >drive and sere the presentation and prevent him
 from
 >making copies of the file/s onto HDD / another CD.
 That's not hard. Somewhere in your startup script,
 attempt to write a
 file to a directory underneath (the moviePath). If
 it fails, you're
 running from read-only media and all is well.

 >If he copies the content using windows explorer, i
 >want to see the error "Can not copy file:error"
 >message.  I don't want all files to be protected in
 >such a way but want atleast my exe to do that.
 That's lots harder and involves DRM. Stuff like the
 above is a lot easier.
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