Hello, Using 10/27/05 version it cannot compress Intel 8255x-based PCI Ethernet Adapters (e100b325 Version 8.0.19) I attached to this message the inf file used, check that the SourceDiskFiles required to work recides in the same folder: [SourceDisksFiles] e100b325.din = 1,, e100bnt5.din = 1,, e100b325.sys = 1,, e100bnt5.sys = 1,, Prounstl.exe = 1,, IntelNic.dll = 1,, e100bmsg.dll = 1,, So I have included them in the same folder, plus the .cat file. The error driver compressor drop me is this: Setupfile: e100b325.inf Setupdir: \Net\e100b325 _______________________________ File: e100b325.inf File: e100b325.cat FINDSTR: Cannot open \e100b325.din File: e100b325.din Could Not Find D:\Users\zerospeed\Desktop\e100b325\Net\e100b325\e100b325.din The same error for each one of the SourceDiskFiles section... Maybe :FindSourceDir is reporting "root" of the drive, instead of the current folder from which I executed drv_comp? e100b325.zip