Functions in Functions

Hi,

I have to calculate data in function with "EXEC". During runtime I get the Error:

"Only functions and extended stored procedures can be executed from within a function."

I would use a Stored Procedure, but the function is to be called from a view. I don't understand, why that should not be possible. Is there any way to shut that message down or to work around?

btw: Storing all the data in a table, would mean a lot of work, I rather not like to do. ;-)

Thx for any help

Blubb10