Thankx for responding.
I also guessed that this is due to some server setting. But I don't know where to check that in server and remove it.
Also, I predicted that this may be because of some virus, spyware or malware. Can't say that for sure.
The problem is not when i upload my pages to the server, but when i upload any files from my HTML page to the server.
For upload, i am not using the upload HTML of my hosting provider. I have used "Fupload.dll" in my HTML page.
FYI, I tested the upload script in my local server and found no such short-cuts created (automatically). The problem exist only in the main server.
I hope someone has a better logic on the possible cause of this problem.