BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  OnGuard and other protection schemes          BorlandTalk.com Forum Index -> Delphi Thirdparty Tools (General) View previous topic :: View next topic   Author Message Bergov Guest Posted: Thu May 12, 2005 6:24 pm    Post subject: OnGuard and other protection schemes I have some questions about using OnGuard and some protection schemes. 1. I would like to protect a product with OnGuard and some things seem unclear. I want to offer the full version with an expire period. The OnGuard component which deals with this is OgDaysCode. The way it works is however obscure. For example it seems that the countdown counter must be hidden in registry and the only safe enough location is somewhere in HKLM. But HKLM may not be available if the user doesn't have admin rights. Any ideas? Any docs, besides the original one? 2. When buy the product the client would receive a key to disable the protection. Is there a simple way to to prevent using the same key on many computers? 3. What strategies work for upgrades? I mean what should I do/use to keep track of registered users and offer them discounted prices on upgrades? Thanks everybody Back to top Jerry Blumenthal Guest Posted: Thu May 12, 2005 7:40 pm    Post subject: Re: OnGuard and other protection schemes Bergov wrote: Quote: I have some questions about using OnGuard and some protection schemes. 1. I would like to protect a product with OnGuard and some things seem unclear. I want to offer the full version with an expire period. The OnGuard component which deals with this is OgDaysCode. The way it works is however obscure. For example it seems that the countdown counter must be hidden in registry and the only safe enough location is somewhere in HKLM. But HKLM may not be available if the user doesn't have admin rights. Any ideas? Any docs, besides the original one? 2. When buy the product the client would receive a key to disable the protection. Is there a simple way to to prevent using the same key on many computers? 3. What strategies work for upgrades? I mean what should I do/use to keep track of registered users and offer them discounted prices on upgrades? Thanks everybody Why use any of them? Compile your program with a critical feature that will be disabled on a certain date. Then, two months before that date start reminding the person that they will need to purchase an update. When they buy it, you email them another program, with a diffrent expiration date. Using on multiple computers is more difficult; I"ll let others make those suggestions. Jerry Back to top Steve Troxell Guest Posted: Thu May 12, 2005 8:45 pm    Post subject: Re: OnGuard and other protection schemes Jerry Blumenthal wrote: Quote: Why use any of them? Compile your program with a critical feature that will be disabled on a certain date. Then, two months before that date start reminding the person that they will need to purchase an update. When they buy it, you email them another program, with a diffrent expiration date. Which forces customers to pay more money to buy more upgrades otherwise the investment they already made self-destructs? Steve Back to top Andrew Mortlock Guest Posted: Thu May 12, 2005 11:00 pm    Post subject: Re: OnGuard and other protection schemes I used TOgDaysCode and TOgRegistrationCode to provide a 30 day trial and then restrict the use of the program to one computer. The DaysCode counts down the days and, before that expires, the user contacts you and you provide the registration key upon payment. (You can extend the time by a small program to change the base date) The user then enters the key which is saved for the RegistrationCode to check. You can hide the counter anywhere you like. It is retrieved in the OnGetCode event. I split the counter for TOgDaysCode in two and hide each half in different fields in the database. That way the user can not take the database to a different computer. The code for TOgRegistrationCode is placed in the registry Current User. OnGuard has an option called "Machine modifier" that makes the key computer specific. Andrew Bergov wrote: Quote: I have some questions about using OnGuard and some protection schemes. 1. I would like to protect a product with OnGuard and some things seem unclear. I want to offer the full version with an expire period. The OnGuard component which deals with this is OgDaysCode. The way it works is however obscure. For example it seems that the countdown counter must be hidden in registry and the only safe enough location is somewhere in HKLM. But HKLM may not be available if the user doesn't have admin rights. Any ideas? Any docs, besides the original one? 2. When buy the product the client would receive a key to disable the protection. Is there a simple way to to prevent using the same key on many computers? 3. What strategies work for upgrades? I mean what should I do/use to keep track of registered users and offer them discounted prices on upgrades? Thanks everybody Back to top Jerry Blumenthal Guest Posted: Sat May 21, 2005 7:16 pm    Post subject: Re: OnGuard and other protection schemes Steve Troxell wrote: Quote: Jerry Blumenthal wrote: Why use any of them? Compile your program with a critical feature that will be disabled on a certain date. Then, two months before that date start reminding the person that they will need to purchase an update. When they buy it, you email them another program, with a diffrent expiration date. Which forces customers to pay more money to buy more upgrades otherwise the investment they already made self-destructs? Steve I'm just describing HOW to do what he wants. Personally, updates to all of my software have always been free within version. 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