How to solve 'CLED error SRV #001'

Sometimes people using Cubase or VSTs by Arturia encounter a 'CLED error' message upon restarting their systems. This is actually an error caused by a dongle emulation software (read, a software crack) made by a (I believe now  defunct) group called H20 written to circumvent the sophisticated Syncrosoft dongle copy protection system. 

One way to avoid the error is to remove CLED.EXE from the registry startup entries. CLED.EXE is a tray application talking to a syncrosoft dongle emulation device living usually in the system peripherals tree. In case of partial deinstalls, double installs, or other problems CLED.EXE has trouble talking to the device. Of course removing CLED and/or the device removes the software crack, as a side effect.

For those wanting to indulge in using slightly old, often partially working cracked music software, merely for research purposes and in anticipation of actually buying the real thing (it's not hypocrisy: there are NO working cracks for the latest releases of Cubase and some Arturia softsynths, for real purposes one has to buy the real thing) here's a simple guideline to actually solve the CLED error problem.

- first of all deinstall everything, the syncrosoft software, the cled.exe

entries, the emulation device, cled.exe itself.

- purge the registry of every entry (even registrations CLSID trees) referring to syncrosoft

- delete cled.sys in \windows\system32\drivers

- delete the syncrosoft dlls (synsoacc*  etc)  from \windows\system2

- find a recent release of the True Emu Syncrosoft Driver 5.01 and install it

- reinstall the original software: it should reinstall the Syncrosoft software 

and found the emulation device already installed.

That's it: it's only a rough guideline, of course you have to know what you're doing (don't try it if you don't, you risk to blow up your entire system) and it's not guaranteed to work anyway. Better of other solutions you may find online, though...