The mother lode of source code for MSDOS redirectors, drivers, and related code appears to be the BCPPDOS forum on CompuServe. Some of the authors state that their software has been placed in the public domain, although for some reason they usually left in their copyright notices. It's a very good idea to have the author's explicit permission on file before redistributing any of this software. In the C programming library: CPHANT.ZIP C source for MSDOS network redirector DRIVER.ZIP C/Asm source for generic driver skeleton RDCF2.ZIP C source for complete MSDOS file system In the General library: CRAMDI.ZIP C source to RAM disk driver FDCBIOS.ZIP Asm source to floppy disk driver Doug