>In a word, web. Could you explain what you mean by limited capability? Possibly you mean that it must be called from a multi-threaded client like IIS and not a VFP exe? The VFP mtdll does away with the need to have several vfp .exes in the background servicing multiple web requests which was the old hack to do vfp web programming.

Sure, Claude. MTDLLs are not that different - any simultaneous requests now fire a separate copy of VFP runtime, so multiple copies of the runtime get loaded just the same!

Bottom line is this: VFP is not really multithreaded and in order to run multiple requests simultaneously it has to have more than a single copy of the runtime running.

+++ Rick ---