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Product activation is a license validation procedure required by some proprietary software programs. Product activation prevents unlimited free use of copied or replicated software. Unactivated software refuses to fully function until it determines whether it is authorized to fully function. Activation allows the software to stop blocking its use.
On Windows 10 and Windows 11, the activation process can also generate a "digital entitlement", which allows the operating system's hardware and license status to be saved to the activation servers, so that the operating system's license can automatically be restored after a clean installation without the need to enter a product key.
Windows Process Activation Service (also known as WAS) is the process activation mechanism introduced within Internet Information Services v7.0. Windows Activation Service builds on the existing Internet Information Services v6.0 but is more powerful because it provides support for other protocols besides HTTP , such as TCP and Named Pipes .
Unlike Win32 applications, native applications instantiate within the Kernel runtime code (ntoskrnl.exe) and so they must have a different entry point (NtProcessStartup, rather than (w)(Win)MainCRTStartup as is found in a Win32 application), [4] obtain their command-line arguments via a pointer to an in-memory structure, manage their own memory ...
That function allocates an _EXCEPTION_REGISTRATION_RECORD on the stack pointing to the __except_handler3 [a] function in msvcrt.dll, [b] then adds the record to the list's head. At the end of the __try block a compiler-defined EH_epilog function is called that does the reverse operation.
OpenCandy was an adware module and a potentially unwanted program classified as malware by many anti-virus vendors. [1] [2] [3] [4] They flagged OpenCandy due to its ...
The import address table (IAT) is used as a lookup table when the application calls a function in a different module. The imports can be specified by ordinal or by name. Because a compiled program cannot know the memory locations of its dependent libraries beforehand, an indirect jump is necessary for API calls.
At the end of the file, the functions to be exported are listed in exports clause. Delphi does not need LIB files to import functions from DLLs; to link to a DLL, the external keyword is used in the function declaration to signal the DLL name, followed by name to name the symbol (if different) or index to identify the index.