User`s guide

are Copy II Plus disk image files. I have seen ".img" (and ".image") used for
Diskcopy disk image files.
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From: Rubywand
012- I'm using an Apple II emulator to play games. The
game directions say the boot disk must have a write
protect tab. How do I set write protection for a disk
image?
Under Windows on a PC, you can right-click on the file name, select
Properties, and adjust the "Read-only" attribute. Checking "Read-only" turns ON
write protection; unchecking it turns write protection OFF.
______________________________
From: Jon Bettencourt
On a Mac, you select the file, go up to File --> Get Info..., and click on
"Locked."
______________________________
From: Rubywand
013- How can I create a disk image from a ShrinkIt .sdk
file?
NuLib v3.24 can be used to make .po disk images from ShrinkIt 5.25" whole-
disk archives-- e.g. .sdk files.
Note: NuLib v3.24 can create 5.25" disk images only for .sdk files created by 8-
bit ShrinkIt (not ones created by GS-ShrinkIt). Since most .sdk files were
created by 8-bit ShrinkIt, there is usually no problem.
For instance, suppose you have downloaded a whole-disk archive (.sdk file)
of a 5.25" disk of modem utilities named "modem1.sdk" and wish to convert it
into a disk image. For this example, it is assumed that you have downloaded
NuLib v3.24 and unZIPed it and, now, have all of your Nulib stuff (nulib.exe,
docs, etc.) in C:\nulib on your PC:
o- After downloading to the PC, check the file name of the .sdk file you want to
convert. The name should have from 1 to 8 characters followed by ".sdk". If it
doesn't, rename the file so that it does. The file modem1.sdk follows the above
rule; so, there is no need to rename it.
o- Move or copy modem1.sdk to the C:\nulib folder.
o- Since you are probably in Windows95 (or later) open an MS-DOS window.
o- In the DOS window, go to the nulib folder ...