Making Trial Version Application

Try http://www.planetsourcecode.com/vb/scripts/ShowCode.asp?txtCodeId=889&lngWId=7

You should search the web, and http://www.planetsourcecode.com/vb/default.asp?lngWId=7 (the Delphi-part of Planet Source Code)

PS: In theory, all applications can be cracked.. they usually use the Registry or local files.. the best way to make these "demo"-versions, is to NOT include the full-version features.

Yeah, i agree with thesurfer. Programs can and will be cracked easily. The best way to avoid this is to create a demoversion, so people can get an idea of what your application does.
When someone buys the application, it could be sent on a CD-R using postal mail, and then required a unique key combination.

I fully agree thesurfer but what i need is that to try it and see how the world of trailing and works and take an idea of it. I am still working on the planetsourcecode stuff. If any one elese has some thing so i please seeing forward.

Thanks in advance