Computer Security Program for Windows 95/98/2000/ME/XP
Program Sentry

    Program Sentry is a computer security program that provides access control and usage management. When installed, it allows you to either create a list of blocked programs or a list of allowed programs. In the blocked programs mode, any program on the list is blocked. In the allowed program mode, any program NOT on the list is blocked. Which mode you choose to use depends on whether you have a few programs you want to block (in which case you would use the blocked program mode), or you have a few programs you want to allow people to use (in which case you would use the allowed program mode).

In both modes, you can assign optional  passwords to the programs on the list. In blocked program mode, if no password is assigned to a program, it cannot be individually unblocked. If a password is assigned to a blocked program, it can be unblocked using the password. In the allowed program mode, if no password is assigned to the program, it is never blocked. If a password is assigned to the program, it is blocked until someone enters the password for that program. passwords are useful if several people use the computer, and you want each to be allowed to use different programs. You can give each person the passwords to the programs they are allowed to use.

An administrator password is required to add or remove programs from the lists or change their passwords. This provides the person who installs Program Sentry with the ability to completely control the use of a computer.

All blocking can be temporarily turned off using supervisor level password. This password cannot be used to add programs to (or remove programs from) the program lists.

This program is most useful in a business setting, where the supervisor needs the ability to control who can do what on each company computer. It can also be useful in a family setting, however, to give parents control of the computer to block children from using certain programs.

This program is distributed as shareware. This means that you can download the program and try it for free for 30 days. At the end of that time, if you wish to continue using the program, you must pay the registration fee of $25.00 (volume discounts available).

Note: Program Sentry does NOT work on Windows NT.

Click here to download the installation program (prsenarc.exe).
(Note: If you have any trouble with the download, please click on Alternate Download.)

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Downloads for Win7 

To see a review, click here. To see a virus report, click here.

**** Customization ****
If you like this program, but would like to see some improvements or additional features,
contact Leithauser Research at or (386)-410-6769 and describe the addition features you would like to see in this program. If they sound like good ideas, we will add the improvements at no charge.
Just part of our customer service!

     An alternative to this program is Program Selector Pro (PSP). PSP also provides access control to your computer. PSP totally replaces the standard Windows interface (icons, Start menu, task bar) with a list box of program names. You control what programs appear on the list, and can assign passwords to individual programs. You can also password protect access to Windows itself, and even control exiting from Windows. PSP provides more thorough (although more intrusive) control of Windows than Program Sentry. Click here to read more about PSP.
     Note: If you are interested in Internet access control, you might be interested in Web Padlock. Web Padlock allows you to control what Web sites can be accessed from your computer in a similar manner to the way Program Sentry allows you to control what programs are run on your computer. To view information on Web Padlock, click here.

   If you have any questions, please send email to In case of emergency, you can call
(386) 410-6769 between the hours of 11 AM and 5 PM Eastern time.

   If you prefer to write, the address is

Leithauser Research
821 SnapDragon Drive
New Smyrna Beach, FL 32168

Read Program Sentry Instruction Manual

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