VACB files contain cached Windows PC file access information. This includes the file's location and name. VACB files should not be opened. If you know the file format, you can find out how to open or ...
VACB files contain cached Windows PC file access information. This includes the file’s location and name. VACB files should not be opened. If you know the file format, you can find out how to open or edit it. Each format has a unique extension and signature. For example, Word docs have .docx extension and PK signature. If extension doesn’t match format, errors occur on opening. This also applies with faulty files.
VACBs represent virtual address blocks when files map into cache slots. “No name for file” means the VACB caches metadata. Output shows active and non-active VACBs. FSD calls CcCopyRead to read cache data. CcGetVirtualAddress returns address in memory. It works with one VACB and slot.
MmCreateSection creates the section object. CcCreateVacbArray initializes .Vacbs and .SectionSize fields. The debugger !filecache command displays in-use VACB info. The SharedCacheMap points to the structure owning the VACB. The ArrayHead points to the VACB_ARRAY_HEADER containing it.
Microsoft Visual Studio