Microsoft KB Archive/103241

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PRB: Running Early Apps Results in Error w/ RtlExAllocateHeap

PSS ID Number: Q103241 Article last modified on 12-23-1993

3.10 WINDOWS

The information in this article applies to:
- Microsoft Win32 Software Development Kit (SDK) for Windows NT, version 3.1

SYMPTOMS

The following error is received The procedure entry point RtlExAllocateHeap could not be located in the dynamic link library ntdll.dll. when running applications on Windows NT version 3.1 that were built with a version of the Win32 SDK earlier than the .404 (March) release.

CAUSE

Applications built with the .404 (March) SDK or later should have no problems running on Windows NT version 3.1. Applications built with earlier SDKs are not guaranteed to run on the final release Windows NT, even if they ran on the .404 release of Windows NT.

WORKAROUND

The best way to work around the problem is to completely rebuild the application with the latest tools. If this is not possible, the other alternative is to patch the old executable with B2FIX.EXE, which can be found in Library 1 of the MSLNG32 forum. The original intent of this program is to patch Visual C++ 1.0 so that it can be used under Windows NT.

MORE INFORMATION

Note that not all of the March SDK tools were built with the March SDK. In particular, running the March SDK cl386 compiler will cause this error. It is necessary to use the final SDK update or Visual C++ for Windows NT to create 32-bit applications on Windows NT.

Additional reference words: 3.10 KBCategory: KBSubcategory: Copyright Microsoft Corporation 1993.