Hello all.... I have a problem that, sometimes OTRS system suddenly gets down, giving "500 internal server error" error. For this, I simply restart IIS server and then it starts again. I am using IIS7. What could be the possible reasons? Also tell me which module I should use for OTRS in IIS under 'Handler Mapping'- CGImodule or ISAPIModule ? Currently I am using ISAPI. Thanks a lot for your response... Regards- Pradumna Maheshwari =====-----=====-----===== Notice: The information contained in this e-mail message and/or attachments to it may contain confidential or privileged information. If you are not the intended recipient, any dissemination, use, review, distribution, printing or copying of the information contained in this e-mail message and/or attachments to it are strictly prohibited. If you have received this communication in error, please notify us by reply e-mail or telephone and immediately and permanently delete the message and any attachments. Thank you