I have come back to an old application which I last used about a year ago.
After the application has run a script runs to record the results in an excel spreadsheet using TCOM.
This all use to work wonderfully, however it does not now do so.
The application is a large co-simulation and runs in a tcl 8.3.5 environment, and uses lots of memory - <2.5GB of memory
The machine it is being run on is Pentium(r) 4 at 3GHz with 2GB of Ram and 1GB of page memory,with a windows XP system service Pack 3 with all the latest updates.
Excel is part of the MS Office 2003 suite.
If I manually do
     
======
set rrat_tcl_library "C:/Cohesive_V7.201_Virtensys/contrib/tcltk/Tcl-8.3.5/lib"
     package ifneeded tcom 3.9 {
        set dir [file join $rrat_tcl_library tcom3.9]
        source [file join $dir pkgIndex.tcl]
        }
     package require tcom
     set application [::tcom::ref createobject "Excel.Application"]
======


I get the following displayed on the console

3.9
0x800700a4 {No more threads can be created in the system.}

Before I run the simulation the above spcript works fine. This is the result of the same spell.

3.9
::tcom::handle0x01704028

I can also do the above in a new simulation task at the same time, so there are enough machine resources.
When it first failed I was using tcom version 3.7 which failed just the same way.
I have looked at the task manager performance tab and there are only 528 threads in use, well short of limit which I believe to be 2048

Is there something I can do to alleviate this problem?

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