WinXP won't let me use an application to open a file ?!

[Guest Robert Macy]

I can't get WinXP to allow me to open a file using a selected

application.

 

I want to use Scintilla's Sc1.exe to open several of the files that

used to be associated with it.

 

for example

Matlab script program

trythis.m

used to open with Sc1.exe, but now WinXP won't let me open it that

way.

 

I can still open the Sc1.exe application, then find the file and open

the file. But why can't I simply double click like I used to?

 

I went to tools options and deleted the .m tie. Now I must choose

what application opens it, but...

 

So I click to open the .m file and get the browse, find Sc1.exe, but

nothing happens, it won't open

 

WinXP thrusts me back into using a choice of Notepad or Wordpad.

 

How do I get control of this #%!@^#$* system again? and tie opening

any file to any application I choose?

 

Robert