Stephen's Host Integration Server Blog

The intent is to share some details about Host Integration Server (HIS) that are not well documented, not well known, as well as various tidbits that come up when supporting HIS.

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  • Blog Post: TN3270 Server logs an Event ID: 702 message

    We have come across a couple of reports of the TN3270 Server logging the following event message when Performance Monitor is started: Event ID: 702 Source: TN3270 Server Description: Windows API RegOpenKeyEx failed with error code 2L (The system cannot find the file specified.) in function OpenPerformanceData...
  • Blog Post: Explaining the TN3270 Idle Timeout setting

    Questions about how the TN3270 Idle Time setting works have come up over the years, so I decided that I should provide some details to help clear up how the timeout actually works. Hopefully, it will help provide HIS Server Admins with additional knowledge that will allow the best setting to be chosen...
  • Blog Post: TN3270 service terminates unexpectedly after it is started

    If the user account that the HIS services are configured to run under does not have permissions to the following registry key, the TN3270 service may terminate shortly after it starts: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\eventlog When this occurs, an event message similar to the following...
  • Blog Post: TN3270 Server logs Event 903 when enabling traces using the SNA Trace Utility

    You may see the following event logged in the application event log after enabling the 3270 Messages trace option for TN3270 in the SNA Trace Utility (snatrace.exe): Event ID: 903 Type: Warning Source: TN3270 Server Description: Windows API SetCurrentDirectory failed with error code 5L (Access is denied...
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