Hi rejetto,
Yup, I'm getting the error with this one too when the No-IP dynamic DNS updater tries to update.
Access violation at address 0053CB84 in module 'hfs.exe'. Read of address 00000030
HFS 2.3 beta (200)
----------------------------------------------------------------
Stack list, generated 9/2/2008 10:23:23 AM
[0053CB84]{hfs.exe } main.TmainFrm.add2log (Line 4712, "main.pas" + 28) + $3D
[0053121A]{hfs.exe } main.updateDynDNS (Line 2096, "main.pas" + 9) + $2C
[0054B37C]{hfs.exe } main.everySec (Line 7593, "main.pas" + 13) + $0
[0054BA2A]{hfs.exe } main.everyTenth (Line 7725, "main.pas" + 45) + $15
[0054BB65]{hfs.exe } main.TmainFrm.timerEvent (Line 7748, "main.pas" + 19) + $F
[00450553]{hfs.exe } ExtCtrls.TTimer.Timer (Line 2250, "ExtCtrls.pas" + 1) + $13
[004503BF]{hfs.exe } ExtCtrls.TTimer.WndProc (Line 2208, "ExtCtrls.pas" + 4) + $7
[0042ABB0]{hfs.exe } Classes.StdWndProc (Line 11572, "classes.pas" +
+ $0
[004772E4]{hfs.exe } Controls.FindControl (Line 2103, "Controls.pas" + 6) + $C
[0046E7EA]{hfs.exe } Forms.TApplication.ProcessMessage (Line 7670, "Forms.pas" + 23) + $4
[0046E82F]{hfs.exe } Forms.TApplication.HandleMessage (Line 7689, "Forms.pas" + 1) + $6
[0046EACA]{hfs.exe } Forms.TApplication.Run (Line 7773, "Forms.pas" + 16) + $3
[0056288F]{hfs.exe } hfs.hfs (Line 94, "" + 21) + $2
----------------------------------------------------------------
System : Windows XP Home Edition, Version: 5.1, Build: A28, "Service Pack 2"
Processor: Intel, Mobile Intel(R) Celeron(R) CPU 1.50GHz, 1500 MHz MMX
Display : 1024x768 pixels, 32 bpp
----------------------------------------------------------------
----------------------------------------------------------------
Product Versions
hfs.exe: Build: 0 9/2/2008 1:26:00 AM
hfs.v2.2d.exe: Build: 0 2/4/2008 12:48:18 AM