Sorry for my late response Andrew. My csv file contains hundreds of calculated values, so I prefer not to calculate them every minute for multiple symbols. I believe that a DLL call is the way to go, since I'm not familiar enough with lite-c to rewrite this code from scratch. I've made/called DLLs, written in Pascal in the past, so I'm currently figuring out how to make/call this one in C or C++. Thanks for your suggestions.

Grant