Hello I recently wrote a program that worked for some time, until recently I have been encountering ------------------------------------------------- Runtime Error! Program: C:\WINDOWS\EXPLORER.EXE This application has requested the Runtime to terminate in an unusual way. Please contact the application's support team for more information. ----------------------------------------------------- the errors would occur on some computers while not others, and if i change the name of the folder holding it exe , it would also work , all these lead me to think that it has something to do with the windows registry , that perhaps my nsis program messed something up, but i'm not sure, any suggestions on the causes of the runtime error ???