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"Blocking/Disallowing" applications from opening

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"Blocking/Disallowing" applications from opening

ItsaMystery	3 Dec, 2007 - 03:20 PM Post #1
New D.I.C Head Joined: 3 Sep, 2007 Posts: 8 My Contributions	Hi there - My friend give me a small (yet interesting) programming project as a challenge. Essentially, he asked me to try and make a program that would disallow him to open x, y, and z applications (i.e. solitare, firefox, and winamp) before a certain time. If possible, you would be able to choose which apps to disallow and specify what time the applications would become "unlocked". Is it possible to make a C# program that would run in the background and do this? If so, does anyone know of any tutorials to help me get started? Thanks for your help. - Itsa
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ericode	RE: "Blocking/Disallowing" Applications From Opening 11 Dec, 2007 - 08:59 PM Post #2
D.I.C Head Joined: 9 Dec, 2006 Posts: 89 Dream Kudos: 75 My Contributions	Perhaps you could run this process in a loop with the System.Diagnostics TASKKILL /FI "IMAGENAME eq winamp.exe"
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born2c0de	RE: "Blocking/Disallowing" Applications From Opening 12 Dec, 2007 - 02:16 AM Post #3
printf("I'm a %XR",195936478); Joined: 26 Nov, 2004 Posts: 3,906 Thanked: 34 times Dream Kudos: 2800 Expert In: 80x86 Assembly, C/C++, VB6, VB.NET, C#, J2SE, Win32 API, Reversing My Contributions	You could place a 0xC3 byte (which stands for retn in Assembly Language) at the entrypoint location and save the original byte someplace. This would lock the program. The second the program is opened to run, it will quit. Technically, the program still runs but quits before it can do anything. We're just modifying the executable file to make something that I'd like to call a SmartLock. To unlock the program replace the 0xC3 byte at the entrypoint location with the original byte.
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ItsaMystery	RE: "Blocking/Disallowing" Applications From Opening 12 Dec, 2007 - 02:46 AM Post #4
New D.I.C Head Joined: 3 Sep, 2007 Posts: 8 My Contributions	Thanks so much both of you. I will research these methods further and see what I can come up with!
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