The key RunLogonScriptSync doesn't work for Windows 95.
You should have to wait till completion of the script.
By f.e. NT it works great. Within 2 or 3 seconds an user can
start working. Best advise: when all applications run by NT
migrate to NT.

Bypassing can influence in a negative way roaming profiles usage.
For possible solutions in the furture see:

http://www.regedit.com
http://www.jsiinc.com

Greetings.