I use the following subroutine to send a DDE message from OI 4.12 to the AutoCAD command line. It works fine, on every machine and configuration its been used on, except one - a Windows 2000 machine using Novell Client for Windows, with OI loaded on a Netware server using the Universal Driver. Every time the subroutine is called, OI freezes. I think the one thing that may be different about this configuration vs. other running the same software is the combination of Novell and Universal Driver.

Can anyone please suggest a solution. The code follows:

Subroutine Send_Acad_Msg(MsgTxt)

*

Declare function Set_Property

$Insert User_Var_Defs

• common declarations for user (US) variables

Equ AcadRel TO US18

Begin Case

Case AcadRel1,2=LT"

DDEService=AUTOCAD LT.DDE"

Case AcadRel=AutoCAD 2004"

DDEService=AutoCAD.r16.DDE"

Case 1 ;*(AutoCAD 200/2002)

DDEService=AUTOCAD.R15.DDE"

End Case

Retval=Set_Property("MAINMENU.ACAD_SEND_EDITLINE", 'DDESERVICE', DDEService)

Retval=Set_Property("MAINMENU.ACAD_SEND_EDITLINE", 'DDETOPIC', 'SYSTEM')

Retval=Set_Property("MAINMENU.ACAD_SEND_EDITLINE", 'DDELINK', 'AUTO')

Retval=Set_Property("MAINMENU.ACAD_SEND_EDITLINE", 'DDECOMMAND' ,MsgTxt)

Retval=Set_Property("MAINMENU.ACAD_SEND_EDITLINE", 'DDELINK', 'OFF')

Return

I don't know exactly why, but changing the revparam file to read ServerOnly=1 instead of Serveronly=True fixed the problem.

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