I am using shell and regsvr32 for registring DLL files it work perfectly on some PC's but in some PC i have to manually register the DLL to make it work. i am using "/s" as argument with regsvr32 for no popup messagebox but when i remove "/s" argument it work on ervery PC wihtout any problem.. is there anything i have to know about regsvr32 and "/s" argument? why not my DLL's are registring on some PC when i use "/s"?.. is there any better option for registring DLL files?