During Daylight savings time, we need to change the scan frequency of a few of our AF Analyses which would be affected by DST. We are thinking of writing a small script (a dll or an exe) which can identify if clocks have been modified for DST and then automatically change the scan frequencies of the concerned AF Analyses, when invoked. We would like to know if such a dll/ exe can be invoked directly via AF Analysis. Can I register this dll with the PI System for me to be able to call it directly into my AF Analysis as a method or set of methods ? Or may be some better way, if there exists one.