KSManager dont want to start

Why? 

Could you please elaborate? Do you receive any error messages?

Why? 

Honestly, I dont know, but here are two things that might help :
1 - Make sure the KSManager folder is inside the /Knytt Stories/3rd Party Tools folder. Because the KS Editor will look inside this folder to run it.

2 - Make sure the path to your KS folder is short :
C://stuff that I like/games that I like/games by nifflas/games about knytt/Knytt Stories/ <- Bad
C://Games/Knytt Stories/ <- Good

Try that, and if it doesn't work, come back and tell us something a little more palpable about your problem, like :
What OS are you using?
What version of KS?
Has the KS Manager ever worked for you?
And anything more that might give us a little insight.

...nevermind. it started.

Hi!
I have gotten the same problem with the KN manager when I am in Level Editor. I find it quite annoying, it fixes it if I I reboot the computer then it works fine. I don't know why it suddenly won't start after I worked a while in level editor.

I can try to but it in D:\game\knyttstories\

Because I have it on the desktop now and it may cause long address. But I don't know how it can cause that KN manager don't start because it starts, it's just sometimes it won't start.

If you have it on your desktop, then its inside your profile directory.

If for whatever reason windows cannot load your profile, it might load it as C:\Documents and Settings\YourUsername.1\...

So it adds somethign to your username path. As user you'll not notice this. It can be that this is actually causing the path to be just 1 char too long. I simply not recommend having Knytt Stories entirelly in your profiles path at all.