Hi Danny,

> I just thought it would just use the core function of MS
> calculator or something like that ??

Unfortunately that's not really something that is set up in Windows to be easily re-used or leveraged by other programs.

It kind of takes extra work and planning to make something reusable, sort of the "default" is that programs are isolated from one another.

It's not like it is a super complicated thing to do, but I think it might be something like a day or two for me to get it done nicely.

- Michael