Still celebrating National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17

x
?
Solved

file protection

Posted on 2003-11-21
2
Medium Priority
?
213 Views
Last Modified: 2010-05-01
Any experts can advice me on how to protect my exe file on a certain computer. I have written a program but I only want it to run on a certain PC only. If it is to be copied by an unauthorised personnel, the file should not run. Any ideas? Or is there a way i can prevent others from copying the file from my PC?

Colourblind82

0
Comment
Question by:colourblind82
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 
LVL 24

Accepted Solution

by:
R_Rajesh earned 200 total points
ID: 9801915
Hi colourblind82,

Try tihs:

at the dos prompt type vol

C:\>vol
 Volume in drive C is Win2K2
 Volume Serial Number is 3F94-AE12

this will give you the volume serial of your c drive (will be different than the one listed here)

now in your vb program hard code it to a variable like cVol = 3F94AE12 (replace it with yours)

now in your startup form_load procedure you can compare this number with the serial of the current machine if they dont match then exit the program

---------
Public Declare Function GetVolumeSerialNumber Lib "kernel32" Alias _
"GetVolumeInformationA" (ByVal lpRootPathName As String, _
ByVal lpVolumeNameBuffer As Long, ByVal nVolumeNameSize As Long, _
lpVolumeSerialNumber As Long, ByVal lpMaximumComponentLength As Long, _
ByVal lpFileSystemFlags As Long, ByVal lpFileSystemNameBuffer As Long, _
ByVal nFileSystemNameSize As Long) As Long

Public Function VolumeSerial(DriveLetter) As Long
Dim Serial As Long
Call GetVolumeSerialNumber(UCase(DriveLetter), _
0&, 0&, Serial, 0&, 0&, 0&, 0&)
VolumeSerial = Serial
End Function

Sub form_load()
cVol = "3F94AE12" 'replace this with the serial of your machine
If Hex(VolumeSerial("C:\")) <> cVol Then End
MsgBox "match"
End Sub
--------------------------

Cheers!

Raj
0
 

Author Comment

by:colourblind82
ID: 9807890
Thanks a lot

Colourblind82
0

Featured Post

Hire Technology Freelancers with Gigs

Work with freelancers specializing in everything from database administration to programming, who have proven themselves as experts in their field. Hire the best, collaborate easily, pay securely, and get projects done right.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

I’ve seen a number of people looking for examples of how to access web services from VB6.  I’ve been using a test harness I built in VB6 (using many resources I found online) that I use for small projects to work out how to communicate with web serv…
Introduction While answering a recent question (http://www.experts-exchange.com/Q_27402310.html) in the VB classic zone, I wrote some VB code in the (Office) VBA environment, rather than fire up my older PC.  I didn't post completely correct code o…
Show developers how to use a criteria form to limit the data that appears on an Access report. It is a common requirement that users can specify the criteria for a report at runtime. The easiest way to accomplish this is using a criteria form that a…
This lesson covers basic error handling code in Microsoft Excel using VBA. This is the first lesson in a 3-part series that uses code to loop through an Excel spreadsheet in VBA and then fix errors, taking advantage of error handling code. This l…
Suggested Courses

721 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question