ID Number: Q44346
3.x
MS-DOS
Summary:
SHARE.EXE provides file sharing and locking to the MS-DOS operating
system. To determine whether SHARE.EXE is loaded, an Interrupt 2FH
call is used. The parameters for the call are as follows:
AH = 10H
AL = 00H
The result will be returned in the AL register with the following
values:
00H - Not installed, OK to install
01H - Not installed, not OK to install
FFH - Installed
Sample code would look like the following:
(other program code)
MOV AH,10H ; Set up registers for installed call
MOV AL,00H ; for SHARE.EXE
INT 2FH ; Make the call, return value in AL