Hi all I found a good OCX for get HDD serial Number ( i think ) in below address http://www.vb-fun.de/cgi-bin/loadframe.pl?ID=vb/komponenten/komponente0042.shtml and for download : http://www.dswd.de/download/hwinfo.zip but when i want to add the control to my form an error occured.( Ole error code 0x80004005. Unspecified error) i have mfc42.dll & msvcrt.dll in my windows system directory. i see that VB programmer work with this component. can i use from it in VFP? can you recommend another free component? Thanks