Yet another question!!!

I am trying to use the Worksheet_change Event to call a macro that I have
placed in the "ThisWorkbook" folder using Application.run. The problem I am
having is that I do not want to use the specific name of the workbook in the
statement because it can change since I am making a "Template". Any
suggestions how I can call the Active workbook instead?!?! I have tried
several itterations and nothing seems to work. I keep getting application
failure. I assume it cannot find the macro....

Example:

Worksheet name - myworksheet
macro name - runme

Application.run "'myworksheet.xls'!ThisWorkbook.runme"

but replace "myworksheet.xls" with a generic statement

Thank you!
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I am not where I intended to go, but I think I am where I am supposed to be!