I installed the VC++ packages and it worked! Thank you Otomatic and RiggsFolly!
For sake of completeness, here is the full error-output:
State of services:
The service 'wampapache64' is NOT started
EXIT error code:1066
Help message for error code 1066 is

er Dienst hat einen dienstspezifischen Fehlercode zurückgegeben.
>>> Invalid command 'SSLCipherSuite', perhaps misspelled or defined by a module not included in the server configuration .
>>> AH00526: Syntax error on line 53 of C:/wamp/bin/apache/apache2.4.33/conf/extra/httpd-ssl.conf: .
The service 'wampmysqld64' is started
Service Session : LocalSystem
The service 'wampmariadb64' is started
Service Session : LocalSystem
WampServer (Apache, PHP and MySQL) will not function properly if any service
'wampapache64'
'wampmysqld64'
'wampmariadb64'
is not started.
all services BINARY_PATH_NAME are OK
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