Contributor: SWAG SUPPORT TEAM { > Your approach (as all similar ones I have seen so Far) has a major > drawback: you can't use PKLITE, TinYPROG, LZEXE afterwards to > squeeze them down in size, as the offsets of the Program change. > Has anyone come up With a another approach circumventing this? Yes, you can store it at the end of the .EXE File ( after the code ) With the following routine : } Function CodeLenOnDisk( FName : String ) : LongInt; Var ImageInfo : Record ExeID : Array[ 0..1 ] of Char; Remainder : Word; Size : Word end; F : File; begin Assign( F, FName ); Reset( F, 1 ); if Ioresult <> 0 then Exit; BlockRead( F, ImageInfo, Sizeof( ImageInfo )); if ImageInfo.ExeID <> 'MZ' then Exit; CodeLenOnDisk := LongInt( ImageInfo.size-1 )*512 + ImageInfo.Remainder; end; { With this one, you can determine the end of the code in your .EXE File, and then Write other data there, Drawback : This Dosen't work in network environments or With shared .EXE Files. I'd recommend an external passWord File, and there storing a hash of the passWord. }