저장소/VC++
[Win32 API] Registry Element Size Limits
MindGear
2010. 12. 16. 20:50
Registry Element Size Limits
The following table identifies the size limits for the various registry elements.
| Registry Element | Size Limit |
|---|---|
| Key name | 255 characters |
| Value name | 16,383 characters
Windows 2000: 260 ANSI characters or 16,383 Unicode characters. Windows Me/98/95: 255 characters |
| Value | Available memory (latest format)
1MB (standard format) Windows Me/98/95: 16,300 bytes. Windows 95: There is a 64K limit for the total size of all values of a key. |
| Tree | A registry tree can be 512 levels deep. You can create up to 32 levels at a time through a single registry API call. |
Long values (more than 2,048 bytes) should be stored as files with the file names stored in the registry. This helps the registry perform efficiently.