I am not able to make DDE-client functions working on a Win 2k machine with 24x7 Scheduler v. 3.4.11.
The DDEOpen function always works, returning a positive channel number, but when I try to use this channel to make
execute/setdata/getdata operations a failure message pops up after a 1-minute timeout ("DDE error. Request denied").
Also this minimal example doesn't work:

Dim channel, number

DDEOpen "Excel", "test.xls", channel

DDEClose channel

the close statement fails with a generic "DDE error. Close channel failed".
I have made my trials with the debugger and the JAL script is not "asyncronous", is inserted in the "[default]" queue and the priority is "Normal".

What am I doing wrong?

Thanks for any help.

Please make sure you have declared channel variable and Excel is running when you open a new DDE channel and it knows what "test.xls" is.

By the way which Excel version are you using?

: I am not able to make DDE-client functions working on a Win 2k machine with
: 24x7 Scheduler v. 3.4.11.
: The DDEOpen function always works, returning a positive channel number, but
: when I try to use this channel to make
: execute/setdata/getdata operations a failure message pops up after a 1-minute
: timeout ("DDE error. Request denied").
: Also this minimal example doesn't work: Dim channel, number

: DDEOpen "Excel", "test.xls", channel

: DDEClose channel

: the close statement fails with a generic "DDE error. Close channel
: failed".
: I have made my trials with the debugger and the JAL script is not
: "asyncronous", is inserted in the "[default]" queue
: and the priority is "Normal".

: What am I doing wrong?

: Thanks for any help.

: Please make sure you have declared channel variable and Excel is running when
: you open a new DDE channel and it knows what "test.xls" is.

: By the way which Excel version are you using?

The stange is that the variable is declared as number, and Excel is running, with "test.xls" open.
If Excel is not running or "test.xls" not open the DDEOpen function fails (by the way, with a null error message).
I am using Excel 2000 (9.0.4402 SR-1), but the problem occurs with other DDE servers, and particulary with the application that I want to control (I used Execel as a sample).

Could be a problem with my OS version?

Tanks for Your assistance!

Please try the latest build
http://www.softtreetech.com/download/247upg.exe

This build includes several changes in DDE functions implemetation addressing
compatibility issues in recent MS office applications

: The stange is that the variable is declared as number, and Excel is running,
: with "test.xls" open.
: If Excel is not running or "test.xls" not open the DDEOpen function
: fails (by the way, with a null error message).
: I am using Excel 2000 (9.0.4402 SR-1), but the problem occurs with other DDE
: servers, and particulary with the application that I want to control (I
: used Execel as a sample).

: Could be a problem with my OS version?

: Tanks for Your assistance!

The upgrade to version 3.4.12 fixes the problem.

Thank You!