ISAVEBAK (System Variable)

Improves the speed of incremental saves, especially for large drawings.

Type:Integer
Saved in:Registry
Initial value:1

ISAVEBAK controls the creation of a backup file (BAK). In the operating system, copying the file data to create a BAK file for large drawings takes a major portion of the incremental save time.

0

No BAK file is created (even for a full save)

1

A BAK file is created

Note: In some cases (such as a power failure in the middle of a save), it's possible that drawing data can be lost.