Is there a way to "log in to elogger" which does not depend on the usual hotkey?
If I understand correctly, your client wants you to enable well known
windows malware under linux so she can spy on her employees? While the malware runs under wine, she is having trouble collecting the illicit data it has collected. Ideally she wants to use the windows hotkeys to access the malware interface and "log in". Elogger may also have trouble running its "rootkits".
This process is only going to work, if at all, from within a wine desktop. If the malware is running in the background, you are unlikely to be able to use the windows hotkeys to much effect. My suggestion was to set up a linux hotkey to do the same thing.
As elogger is such common malware, and has been distributed in more malicious forms by third parties, care must be taken to avoid exposing personal information to such deliberately infected systems. The rootkit-like behavior of some of it's files can also be exploited by unrelated malware. Good thing this is linux - unfortunately, wine is very faithful about emulating the windows API. Have fun.
A more useful suggestion is to consider other ways to assure the trustworthiness of employees. Earning their loyalty perhaps?