1. Introduction  
2. Survey sample  
2.1. Initial target list  
2.2. Sample properties  
2.3. Disks  
2.4. Additional target selection  
3. Observations  
4. Data reduction  
4.1. Preliminary reduction  
4.2. PSF-subtraction  
4.3. Companion characterization  
4.4. Contrast curves  
5. Results on individual objects  
5.1. Newly detected companions around individual objects  
5.2. Interesting non-detections and dubious candidates  
5.3. Disks  
6. Results on the overall sample  
6.2. The problem of the mass-luminosity conversion  
6.3. Temperatures as a model- and age-independent parameter to constrain the population of forming planets  
6.4. Survey completeness  
7. Discussion  
7.1. Occurrence rate of forming planets  
7.3. Emission from accreting circumplanetary disks  
8. Summary and outlook