Hi, Whenever I try to save a header file in uVision 3.23 a message tells me that "A sharing violation occurred while accessing C:\abc.h.", and then in the next popup "Could not write file - 'C:\abc.h'". There are no problems when saving any other type of files, just the header-files. Also, if I open the header file with Notepad and then save it from there it works. Anyone who has any idea why this is?