Use CAPTURE.EXE at you own risk. One of the major problems with using software interrupts is that you never can tell when the interrupt vector will be changed by some other software. Quite often the offending software is the program/function that you would least suspect. If you are getting the "OPUS!COMM not responding" message from Opus, then try executing CAPTURE just before you execute Opus. You must be using X00.SYS. CAPTURE will not work with OPUSCOMx. If you know the offending program/function, execute CAPTURE immediately following the culprit. In fact, its not a bad idea to always execute CAPTURE just before you execute Opus. CAPTURE.EXE simply tells the device driver X00.SYS to re-capture the software interrupt vector(s) (from whoever grabbed it). CAPTURE may be executed at any time. Revision History V1.00 Added the options ON and OFF. The default is CAPTURE ON. If you enter CAPTURE OFF then X00.SYS will restore the original interrupt 14H vector. If you CAPTURE OFF then you must CAPTURE or CAPTURE ON before you execute Opus again. The advantage of the ON and OFF options is that it allows you use the native driver of SEAdog if you want to. That is, if you enter CAPTURE OFF just before you execute SEAdog then SEAdog will not use the X00.SYS FOSSIL functions. It will use its own comm drivers. However, on my system, SEAdog V4.0 will not work under MultiLink if its native drivers are used. V1.08 Internal changes to work with X00 V1.07c and up.