It may cause problems if you install EB under Program Files, if it works for you, fine.

RTW has a "memory-leak"-bug, that causes the game to crash. As EB maxes the RTW-core-engine out in every aspect, you may receive those CTD's. Quitting after 90min of playing should prevent that.

Otherwise you could switch to BI/ALX executables because the leak is not that hard there. Upgrading your RAM or increasing the pagefile may help too.

XSamatan