We are getting an error message at 2 secondary schools in SIMS "Error creating windows handle. :SystemComponentModel.Win32Exception" this is occurring at random times and usually in personnel & Cover, but is also in other areas of SIMS. We have tried all options received from Capita but with no luck, they have now said this is an environmental issue so they cannot help with this any further as its "windows handles" building up due to the machine not being rebooted regularly - this is not the case the users machines are rebooted every night and we have also tested rebooting the machines during the day but the error occurs within 20 minutes. The other option they gave was to give the user more RAM however the users already have 4GB and it's not an option to increase this.
The machines have been rebuild, SIMS re-installed (by ourselves and Capita)and the paging file increased but with no such luck.
Any Suggestions would be much appreciated.