.gadget - Windows sidebar gadget file
.DS_Store - Macintosh OS X Folder Information
.shs - Microsoft Windows 95/98 clipboard
.alx - BlackBerry application loader file
.pf - Windows prefetch file
.sfcache - ReadyBoost cache file
.lck - Lock file (database access control)
.ocx - ActiveX control file
file extension SID - Microsoft Systems Management Server (SMS) software inventory delta
File extension SID description:
File extension used by Microsoft Systems Management Server (SMS).
Associated applications to file extension SID:
Company / developer:
Microsoft Corporation

