Yes, There are two ways.
1a) Goto my 'My Computer' and click Tools > folder options
1b) On the tabs that you see, click the third one (File Types)
1c) You should now see a list of registered file types. Click New
1d) On the dialog box above, type in the extension you want (eg MSW) and
click OK
1e) On the top of the list you should now see your new extension.
1f) Click on it and then click advanced
1g) Type in a description of the file in the text box, and click Change Icon
to edit your icon
1h) Click New
1i) In the action, type in 'Open'
1j) Click Browse.
1k) Search for the executable you want to open your new extension (ie
C:\Program Files\Microsoft Word\MSWORD.exe)
1l) Click OK
1m) Click OK again
There is it done!
I will send the secound one later!
Tim