Hi, I am trying to understand the usb support or non-support problem of Win95. The usb support files of OSR 2.5 extent Win95 with several files and especially with the NTKERN.VXD which include the usb wdm stack, I think. Inside that file there are some strings which points to HAL.DLL and ntoskrnl.exe. I believe that this two files are inline of NTKERN.VXD, could this be right and how will these two files used by the other driver files like usbd.sys? Sadly, I couldn't find any tools like 'Dependency Walker' or 'PE Explorer' for files in LE format to analyze vxd files. Perhaps someone can help me.