I have tried to import the yaffs2 code into the VisualStudio2005 I've tried to compile the code and many errors appeared . For example __inline__ can not be compiled within VS so i changed in __inline and those kind of errors disappeared But I have so many errors in the yportenv.h at line 154 (fatal error C1189) #error Unknown configuration Why? I 've look at the code and tried to define some flags(like... CONFIG_YAFFS_RAM_ENABLED) in my testing main function but the errors remain :-( As I mentioned before, all I want is to be able the compile the yaffs code with Visual Studio and try to do some testing (mounting, read/write file) in the main function Should I do something "special" to enable yaffs emulation or should I include/exclude some files to get this working? Should I use all yaffs2 files for it's emulation or there is a smaller set of files that are enough for yaffs NAND testing with VisualStudio? Thanks in advance, Petar IT_student from Macedonia -- Mr.Dimoski contact: dimoski@gmail.com dimoski@ymail.com "Life would be much easier if I had the source code."