>>1. If I want to retain the existing spell checker, can I use it with the cutesoft editor. If yes how?

 

Yes. all you need to do is adding a custom buton and call your spell checker.

 

Here is an example:

 

How to create a custom button(client side) which displays a dialog?( C# | VB ) This example demonstrates how easy it can be to add your own client side buttons to the CuteEditor by creating a Cross Browser Modal Dialog Box.

The source code of this example can be found in the download package.

 

>>2. If I want to use the cutesoft spellchecker (NetSpell) but wish to use the dictionary which is used by existing spell checker, how can I specify that? My curent dictionary is a text file with list of words with one word per line.

 

Have you compared the dictionaries? Netspell uses the dictionaries of other open source project. The name of dictionary file looks like en-US.dic. It is also a text file with list of words with one word per line.

 

So I suggest you rename your dictionary file to en-US.dic then try again.

 

Keep me posted