[MBS] SystemInformationMBS-MachineID Oddness

[Andrew Voller]

Hi there,

I am using the SystemInformationMBS.MachineID() as part of my licensing system 
to lock the license to a particular computer. I have now seen a situation where 
the MachineID changes frequently for the same computer under WIndows OS (no 
reports on Mac OS). I have narrowed it down to the HardDiscSerial value 
changing (as the MachineID is made up from several parts which I have checked). 
Below is a sample taken showing the change each time the routine is called on 
the same computer once a second (Windows 7 64x Sophos Anti Virus).

Key 1 = SystemInformationMBS.MacSerialNumber()
Key 2 = SystemInformationMBS.MacModel()
Key 3 = SystemInformationMBS.CPUBrandString()
Key 4 = SystemInformationMBS.HardDiscSerial()


// Sample #1
Key 1 :
Key 2 :
Key 3 : Intel(R) Xeon(R) CPU           X5560  @ 2.80GHz
Key 4 : _W
Machine ID : 676E517C002045593918E8B41C38CFD2
 
// Sample #2
Key 1 :
Key 2 :
Key 3 : Intel(R) Xeon(R) CPU           X5560  @ 2.80GHz
Key 4 : mš__ø€ÿÿ
Machine ID : 50B67375AF9731FF00987820166415A7
 
// Sample #3
Key 1 :
Key 2 :
Key 3 : Intel(R) Xeon(R) CPU           X5560  @ 2.80GHz
Key 4 : RAIDVOL
Machine ID : C59C1142FC0C43480E0392231F6B0C07
 
// Sample #4
Key 1 :
Key 2 :
Key 3 : Intel(R) Xeon(R) CPU           X5560  @ 2.80GHz
Key 4 : +a_vø€ÿÿ
Machine ID : 676E517C002045593918E8B41C38CFD2
 
// Sample #5
Key 1 :
Key 2 :
Key 3 : Intel(R) Xeon(R) CPU           X5560  @ 2.80GHz
Key 4 : RAIDVOL
Machine ID : 30CA1591EF9EB4ABF99FA886FBAA0C30
 
// Sample #6
Key 1 :
Key 2 :
Key 3 : Intel(R) Xeon(R) CPU           X5560  @ 2.80GHz
Key 4 : RAIDVOL
Machine ID : 676E517C002045593918E8B41C38CFD2
 
// Sample #7
Key 1 :
Key 2 :
Key 3 : Intel(R) Xeon(R) CPU           X5560  @ 2.80GHz
Key 4 : RAIDVOL
Machine ID : D749C4A00CA07CB3D50885F81091C476
 
// Sample #8
Key 1 :
Key 2 :
Key 3 : Intel(R) Xeon(R) CPU           X5560  @ 2.80GHz
Key 4 : RAIDVOL
Machine ID : 676E517C002045593918E8B41C38CFD2
 
// Sample #9
Key 1 :
Key 2 :
Key 3 : Intel(R) Xeon(R) CPU           X5560  @ 2.80GHz
Key 4 : RAIDVOL
Machine ID : 676E517C002045593918E8B41C38CFD2
 
// Sample #10
Key 1 :
Key 2 :
Key 3 : Intel(R) Xeon(R) CPU           X5560  @ 2.80GHz
Key 4 : ú€ÿÿ¥˜+Cú€ÿÿ§+Cú€ÿÿ
Machine ID : BED9AA0F5F4ADA191268BB0E05DF2FDA
 
// Sample #11
Key 1 :
Key 2 :
Key 3 : Intel(R) Xeon(R) CPU           X5560  @ 2.80GHz
Key 4 : §+Cú€ÿÿ
Machine ID : 676E517C002045593918E8B41C38CFD2
 
// Sample #12
Key 1 :
Key 2 :
Key 3 : Intel(R) Xeon(R) CPU           X5560  @ 2.80GHz
Key 4 : RAIDVOL
Machine ID : 676E517C002045593918E8B41C38CFD2


Any Ideas as to why this is happening ?

Thanks,

Andy
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