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DLL hell is an umbrella term for the complications that arise when one works with dynamic-link libraries (DLLs) used with older Microsoft Windows operating systems, [1] particularly legacy 16-bit editions, which all run in a single memory space.
Learn how to download and install or uninstall the Desktop Gold software and if your computer meets the system requirements.
MSVCIRT.DLL – Microsoft C++ Library, contains the deprecated C++ classes from <iostream.h> (note the file extension) for MS C 9 and 10 (MSVC 2.x, 4.x) (Back then, the draft C++ Standard Library was integrated within MSVCRT.DLL. It was split up with the release of Visual C++ 5.0)
The file format of a DLL is the same as for an executable (a.k.a. EXE), but different versions of Windows use different formats. 32-bit and 64-bit Windows versions use Portable Executable (PE), and 16-bit Windows versions use New Executable (NE).
Over time, the PE format has grown with the Windows platform. Notable extensions include the .NET PE format for managed code, PE32+ for 64-bit address space support, and a specialized version for Windows CE. To determine whether a PE file is intended for 32-bit or 64-bit architectures, one can examine the Machine field in the IMAGE_FILE_HEADER. [6]
These libraries usually have the file extension DLL, OCX (for libraries containing ActiveX controls), or DRV (for legacy system drivers). The file formats for DLLs are the same as for Windows EXE files – that is, Portable Executable (PE) for 32-bit and 64-bit Windows, and New Executable (NE) for 16-bit Windows.
The library resides in a DLL file called commctrl.dll on 16-bit Windows, and comctl32.dll on 32-bit Windows. It is grouped under the User Interface category of the API. [ 7 ]
x86-64 and IA-64 versions of Windows have two folders for application files: The Program Files folder serves as the default installation target for 64-bit programs, while the Program Files (x86) folder is the default installation target for 32-bit programs that need WoW64 emulation layer.