Overview

PC Guard for Win16 offers fully automatic protection for Windows 3.x 16-bit executable applications.

With PC Guard for Win16 you can easily protect unlimited number of your programs with no additional investments!

PC Guard for Win16 can lock protected program to specific motherboard (BIOS checksum) and (or) to protected program disk position. Executable file structure is changed, starting segment can be encrypted and many anti-debugging techniques are used against reverse engineering.


Protection methods

Bios identification - protected program will work only on computer with specific identification code which is defined during protection process. This code can be obtained with GUARDID utility, it isn't stored into protected file and is used for all encryption.

Auto install - protected program can be run on any computer but will stay locked to original computer afterwards.

No identification - protected program can run on any computer (it will still be protected from reverse engineering).

Remote - this method can be used for remote licensing of your software. When protected program is executed it will show dialog box with 32-bit number which is computed according to data from motherboard bios. This code can be transferred from your client to you by phone, fax or e-mail. With it you can than calculate corresponding activation key (32-bit number) and pass it to your client.