Thx für die schnelle antwort!
"Test services" bringt folgendes log:

Starting PunkBuster Service Tests (v0.986) (03/27/08 21:04:13)
Checking OS
Windows XP (build 2600, Service Pack 1) 32-bit
Checking PnkBstrA service status RUNNING
Checking PnkBstrA Version OK (1029)
Extracting "PnkBstrB.exe" to:
"C:\Dokumente und Einstellungen\Lux\Anwendungsdaten\PnkBstrB.exe"
OK
Checking firewall settings ERROR
Checking if PnkBstrB is running NOT RUNNING
Getting port for PnkBstrA OK (44301)
Opening socket for packet send OK
Sending version packet to PnkBstrA SENT
Receiving version from PnkBstrA TIMEOUT
Getting PnkBstrB install instance NOT FOUND
Sending start packet to PnkBstrA SENT
Waiting for packet from PnkBstrA TIMEOUT
Watching for PnkBstrB instance change (0) TIMEOUT
Getting port for PnkBstrB FAILED
Sending version packet to PnkBstrB SENT
Receiving version from PnkBstrB TIMEOUT
Checking PnkBstrK driver status NOT FOUND
Extracting new PnkBstrK to:
"C:\Dokumente und Einstellungen\Lux\Anwendungsdaten\PnkBstrK.sys"
OK
Sending load packet to PnkBstrB SENT
Checking PnkBstrK driver status NOT FOUND
Manually stopping PnkBstrB FAILED - no handle
Removing test PnkBstrB file OK
PnkBstrA.log: cessfully. This service is a component of the PunkBuster Anti-Cheat system. Visit http://www.evenbalance.com for more information.
[03.26.2008 00:13:27] PnkBstrA v1029 Service Started Successfully. This service is a component of the PunkBuster Anti-Cheat system. Visit http://www.evenbalance.com for more information.
[03.26.2008 14:35:34] PnkBstrA v1029 Service Started Successfully. This service is a component of the PunkBuster Anti-Cheat system. Visit http://www.evenbalance.com for more information.
[03.26.2008 18:55:43] PnkBstrA v1029 Service Started Successfully. This service is a component of the PunkBuster Anti-Cheat system. Visit http://www.evenbalance.com for more information.
[03.27.2008 14:05:33] PnkBstrA v1029 Service Started Successfully. This service is a component of the PunkBuster Anti-Cheat system. Visit http://www.evenbalance.com for more information.

PnkBstrB.log: [EMPTY]

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Tests finished.