RewriteRule "^cms.cgi$" /cgi-bin/igs/cms/cms.cgi [R=301,N]
RewriteRule "^cms.cgi?action=alt$" /cgi-bin/igs/cms/cms.cgi?file=altDateiname.html [R=301,N]
RewriteRule "^cms.cgi?action=(.*)" /cgi-bin/igs/cms/cms.cgi/?file=$1.html [R=301,N]