Problem with IIS and ApplicationPoolIdentity

[Chris444]

Hi,
We run an application via IIS, to save something as PDF using PDF-XChange printer driver.
It works fine in regular, but on one machine we have a problem: generating the pdf stops.
pdfsaver.exe is started, but it did not come to an end. We can not see a reason.
The applicationpool within IIS uses default identity "ApplicationPoolIdentity" which works fine on all other installations.
If we change the identity to "LocalService", it will work on the problematic machine as well . But due to other reasons, this is not a solution. It should run with "ApplicationPoolIdentity".
We tried to reinstall the Tracker Printer Driver v9 several times.
Do you have any hints what might cause this and what we could try, to solve it?
Thanks,

[Ivan - Tracker Software]

Can you grab a memory dump of the pdfsaver.exe process when it 'hang' and send us?
I suspect that it may try to show a message box/save as dialog at this moment.
Does the account 'ApplicationPoolIdentity' have desktop access?

[Chris444]

Hi,
How can we send a dump to you so only you can get it and not anyone here?
And how can we check, if the account has desktop access?

[TrackerSupp-Daniel]

Hello, Chris444

Apologies for the delay, You can follow the steps here to place the logs on our useruploads server, please ensure that the items are in a zip folder with an eponymous name so we can locate them easily. Then post here to let us know.

Kind regards,