Thanks to RIPPERMAC for answering. In the meantime I can download with FlashGet again; however it does not work anymore automatically. I have to paste and copy the RapidShare files into the download window and every time I have to put in also the login and password of my premium account. By the way the speed is rather slow compared with other download managers which I was recommended by other users of an other forum. The fastest is “Internet Download Manager”. You can find it on  

http://www.internetdownloadmanager.com/  

However I have only downloaded the trial version and there are some disadvantages compared to FlashGet. An other option would be “Orbit Downloader 2.6.5”. It is faster than FlashGet almost about same speed as Internt Download Manager and has all functions which you also can find in FlashGet. It is a freeware program and you can find it on website:  

http://orbit-downloader.soft-ware.net/download.asp  

or on  

http://www.chip.de/downloads/c1_downloads_hs_getfile_v1_25397174.html?t=1213004799&v=3600&s=c3da14b7f1b8b722caeac69a8330e3cc  

Finally thanks again for your support.