I have uploaded to Simtel.Net:

simtelnet/win95/security/
secman99.zip     SecurityManager 99 by ASHAMPOO: Encrypting individual files & folders

SecurityManager 99 is a powerful application for encrypting individual files and 
the contents of entire folders using the DES method (Data Encryption Standard).
SecurityManager 99 is very secure: When data is encrypted the original files are 
automatically overwritten, making it impossible to restore their contents with 
file utilities. SecurityManager 99 is also extremely fast. Programmed entirely 
in 32-bit code and utilizing special processor instructions that have been available 
since the 80486 generation it achieves performance comparable to that of hardware 
encryption systems. 

Special requirements: Pentium 60 MHz and 32 MB of RAM.

Freeware.  Uploaded by the author.

Rolf Hilchner, HILCHNER & LESANI Verlag (Publishing) GmbH
brought to you by ASHAMPOO
rh@ashampoo.com
http://www.ashampoo.com