Problem Associating .d64 Files To Tmpcreatwin On Winxp Laptop

Hi! I have a WinXP laptop at my day program and installed Template Creator for Windows on it. Now, I have an issue with associating .d64 files to it. Following are two Registry dumps of the keys for .d64 files:
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Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\.d64]
@="DirMaster"

[HKEY_CLASSES_ROOT\.d64\PersistentHandler]
@="{098f2470-bae0-11cd-b579-08002b30bfeb}"

[HKEY_CLASSES_ROOT\.d64\ShellNew]
"command"="\"C:\\MyPrgs\\Picker02\\TmpCreatWin.exe\" \"%1\""
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Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\DirMaster]

[HKEY_CLASSES_ROOT\DirMaster\DefaultIcon]
@="C:\\Emulators\\c64\\Style\\DirMaster\\DirMaster.exe,0"

[HKEY_CLASSES_ROOT\DirMaster\shell]

[HKEY_CLASSES_ROOT\DirMaster\shell\Extract All Here]
"Icon"="C:\\Emulators\\c64\\Style\\DirMaster\\DirMaster.exe"

[HKEY_CLASSES_ROOT\DirMaster\shell\Extract All Here\command]
@="C:\\Emulators\\c64\\Style\\DirMaster\\DirMaster.exe -e \"%1\""

[HKEY_CLASSES_ROOT\DirMaster\shell\open]

[HKEY_CLASSES_ROOT\DirMaster\shell\open\command]
@="C:\\Emulators\\c64\\Style\\DirMaster\\DirMaster.exe \"%1\""
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What could be causing the problem?