Symptoms
You run multiple Advanced Program to Program Communication (APPC) applications in Host Integration Server. After a period of high load, the APPC application's performance is decreased, and it doesn't recover even after the load is reduced.
Resolution
The fix that resolves this problem is included in the following cumulative updates for Host Integration Server:
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
References
Learn about the terminology Microsoft uses to describe software updates.