Hi Ramona,
Beside the .ALI file You must have and MAP file and input file when Ypu create Your Help (This is for HTML Help only). Here some rows from different file I create My help:

*******************
** INPUT.TXT: **
*******************
.topic IDH_OPISSYS
.topic IDH_TECHNICAL
.topic IDH_INSTALL
.topic IDH_KEYBOARD
.topic IDH_BUTTONS
.topic IDH_PRINTER
.topic IDH_DATAENTER

*****************************
** MAP.H **
*****************************
#define IDH_OPISSYS 2
#define IDH_TECHNICAL 3
#define IDH_INSTALL 4
#define IDH_KEYBOARD 5
#define IDH_BUTTONS 6
#define IDH_PRINTER 7
#define IDH_DATAENTER 101

*****************************
** ALIAS.H **
*****************************
IDH_OPISSYS = html\menu1\MyFile1.htm
IDH_TECHNICAL = html\menu1\MyFile2.htm
IDH_INSTALL = html\menu1\MyFile3.htm
IDH_KEYBOARD = html\menu1\MyFile4.htm
IDH_BUTTONS = html\menu1\MyFile5.htm
IDH_PRINTER = html\menu1\MyFile5.htm
IDH_DATAENTER = html\menu1\MyFile6.htm