INFO: More Information on MIDL2362 Warning

ID: Q241849

The information in this article applies to:

Microsoft Visual C++, 32-bit Editions, version 6.0

SUMMARY

When compiling Interface Definition Language (IDL) code that has an OLE automation dual interface with more than 110 methods, the Microsoft Interface Definition Language (MIDL) compiler gives a MIDL2362 warning. The exact text of the warning is as follows:

warning MIDL2362 : too many methods in the interface, requires Windows NT 4.0 SP3 or greater.

This happens on computers with Microsoft Windows NT and that have the latest service pack installed.

MORE INFORMATION

The warning states that the number of methods in the dual interface is greater than what Windows NT 4.0 without any service packs can support. If service pack 3 or higher is installed on the target Windows NT 4.0 computers, then the warning can be ignored. The MIDL compiler does not check the service pack level of Windows NT on the development computer. Therefore, the compiler gives the warning if more than 110 methods are in the dual automation interface even if SP3, SP4 or SP5 is on the development computer.

You can disable this warning if you use the following code before the offending interface:


#if (__midl >= 501)
midl_pragma warning( disable: 2362 )
#endif

This requires a version of Midl.exe that is 5.01.0000 or higher. You can check the version of the MIDL compiler on the computer by running Midl.exe from the command line.

REFERENCES

Q170989 Large Number of Methods in an OLE Interface Causes Failure

In MSDN, midl_pragma warning

Additional query words: MIDL #pragma warning

Keywords : kbnokeyword kbCompiler kbCOMt kbVC600 kbDSupport kbGrpMFCATL
Version : winnt:6.0
Platform : winnt
Issue type : kbinfo