INT 2F U - DOS 3.0+ internal - CLOSE CURRENT FILE AX = 1201h SS = DOS DS = DOS kernel data seg (must be using a DOS internal stack) SDAsee Swappable Data Area current SFTsee System File Table pointer -> SFTsee System File Table of file to close Return: CF set on error ES:DI -> SFTsee System File Table for file CX undefined (new reference count of SFTsee System File Table in many versions) BX destroyed SeeAlso: AX=1106h,AX=1227h,INT 21/AH=3Eh