The multithreaded DLLs should be exactly the same speed for a single-task app. There's just a few differences for multithreading, and it relates to how the global parameter memory is allocated. There's no threading being done in the DLLs if the user program doesn't create threads. It shouldn't be noticeably slower. There might be a speed difference between the VC++ compiled DLLs and the BCB compiled DLLs. I've always intended to do some benchmark testing, but I never got around to it. Right now my key concern is in stability. Eric -----Original Message----- From: James Turner [mailto:james.d.h.turner@xxxxxxxxxxxx] Sent: Wednesday, November 13, 2002 12:23 PM To: delphizip@xxxxxxxxxxxxx Subject: [delphizip] Re: Multithreaded DLLs for testing If someone does test the multithreaded DLLs, I'd be interested to know if they are as fast in a single thread application as the standard DLLs. (There's bound to be a small difference but is there a significant one?) -- James Turner www.skaro.net