FIX: Large Number of Methods in an OLE Interface Causes FailureLast reviewed: October 29, 1997Article ID: Q170989 |
The information in this article applies to:
SYMPTOMSUnder Windows NT 4.0, no more than 110 methods can be present in an OLE automation dual interface that is remoted via type library marshalling. Some applications, such as Microsoft Word, have automation interfaces containing more than 110 methods. This can cause crashes and other unexpected behavior when a controller invokes an automation method in such a server. The limit under Windows 95 is 512 methods per dual interface.
CAUSEThis problem is caused by a marshalling bug in the RPC runtime libraries.
RESOLUTIONThe limit on the number of methods in an interface has been increased in the later releases of the RPC libraries.
STATUSMicrosoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this article. The limit on the number of interface methods has been increased in Windows NT 4.0 Service Pack 2 (see the MORE INFORMATION section of this article).
MORE INFORMATIONCurrently the maximum number of methods in an OLE automation dual interface are:
Windows NT 4.0 - 110 methods Windows NT 4.0 SP2 - 512 methods Windows NT 4.0 SP3 - 1024 methods Windows 95 - 512 methods Keywords : LeTwoAto Platform : WINDOWS Issue type : kbbug Solution Type : kbfix |
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